The ABC show “Brothers and Sisters” once aired an episode in which the two-year-old daughter of Tommy Walker needed a liver transplant. In an earlier episode, when it was discovered Tommy was not able to father children, he asked his two brothers to become sperm donors so that he and his wife could have a child. Since the liver transplant needed to come from the actual father, it was time to find out which of the two brothers was the biological father.
This brings up two often-asked questions:
How difficult is it to determine the paternity of a child when two fathers are closely-related (brothers)? Does testing two brothers decrease the accuracy or probability of the test?
The truth is DNA testing is very accurate and, unless the brothers are identical twins, the test will accurately reveal which one is the father. The biological father’s profile must match the child at ALL locations (loci) tested: usually 15 markers. It’s extremely unlikely that a brother would match a niece at all loci, unless he’s an identical twin to the brother. In that case their genetic profiles will be exactly the same and you wouldn’t be able to tell which one was the father.
In cases like this, we recommend testing both brothers (both alleged fathers) and including the biological mother in the test. By including the mother’s DNA, we can identify which markers in the child’s DNA came from mom and focus on the DNA that must have come from dad. If both brothers are tested with the biological mother, one will emerge as the biological father without question.
Any two people tested, even if unrelated, will likely share at least some markers in common, but a biological father and child will share all markers tested. Including the mother, testing additional markers or loci if needed and testing the other brother will identify more mismatches between the uncle and child and show stronger matches between father and child.
Follow us on Facebook and Twitter! If you have questions about paternity tests or other DNA testing services, please contact our Client Support Center at 888-404-4363, Mon-Fri from 9 AM to 6 PM Eastern Time. Our friendly, expert representatives are ready and happy to help. Get answers anytime by visiting our Help Center.
Midge says
If the suspected biological father is deceased, would it be possible to test his brother to determine if the child shared DNA with that family?
Aurora Contreras says
Two brothers had sex with the same lady. One brother died and a paternity text was given .the live brother said to test positive for DNA. What doe that mean?
Identigene says
Hi, Aurora. It’s extremely important for paternity test customers to notify a lab prior to testing that another possible father is the brother of the man being tested. Even if the other man cannot test because he is deceased, knowing he is also a possible father changes how the analysts come up with the probability of paternity. I suggest that the mother of the child contact the lab and let them know this critical information. They may choose to re-test. Of course, it’s also possible that the brother who was tested really is the biological father of the child.
Casse says
So my supposed sister and i want to get a dna done our father has passed away and ebmveryone says we are not sisters we are just cousins. How would i test her and i??
Identigene says
Hi, Casse. You’d start by giving us a call at 800-344-9583. We an do a half-sibling vs. unrelated test. Ideally, both your mothers would also participate. Is that at all possible? At any rate, give us a call and one of our experts can discuss your case with you confidentially and give you your best options.
Jordan says
Does it mean im gay if none of my brothers or sisters have the same dad?
Identigene says
Hi, Jordan. Being gay or not gay has nothing to do with whether or not siblings have the same dad.
Ask Kate says
Sure, you can do a DNA test between an uncle and a child. We call this an Avuncular DNA Relationship Test. This will show the probability of a relationship between the father’s brother and the child. This test is $495.00 and can take two to four weeks to complete. If you would like more detailed information on this type of testing you can visit our website at: http://www.dnatesting.com/dna-test-relationship/avuncular-dna-testing.php or contact our client support team at 888-404-4363.
TimurAlhimenkov says
I really very liked this post. Can I copy it to my site?
Thanks in advance.
Sincerely, Timur Alhimenkov.
Ask Kate says
You are welcome to post the article on your site as long as your provide me with proper credit for writing the article. Please also include a link back to my blog. Thanks
parker says
If testing is done and it is found a man is not the father, and then it is discovered his brother was sleeping with the same woman, what is the probability of the child being his since the test came back negative on his brother?
Ask Kate says
Parker, I apologize, but there is no fixed probablity to give you in this situation. Even though one brother was excluded as the father that does not automatically exclude the other. Both would need to be tested to prove that they are in fact not the father of this child. I hope that this information will be helpful.
David Fischer says
I tested my father’s DNA and it stated that
we were 99.9% related, is it still possible
that my uncle could be my real father?
Both brothers have passed away and
there is no way of getting DNA samples
for further testing, is it forever a mystery
now?
KD says
David,
Thank you for posting on our blog. Are your uncle and your biological father identical twins? If so, their DNA is identical and we would not be able to confirm paternity. If not, we would be able to determine paternity, even with close relation. When you tested your “father”, did you include the mother in the test? Did you tell client support that there was a chance that your uncle could be your father? If you have a case #, I would be happy to pass it along to client support and they can contact you and speak with you about your results so that you have peace of mind with your results. Best, IDENTIGENE Social Media
Mandy says
Is it possible for an avuncular test for two aunts to come back in the really low probabilities, i.e. 2% and 14% probabilities, if the biological father is indeed my father??? We assume the siblings all share the same parents. We have not done a DNA test with the father’s DNA, and I was astounded with these low results from testing the two sisters of my father. Is this enough to make a paternity conclusion that my father isn’t really my father?
Matt says
You said “If only one brother is tested and the mother is NOT tested, there is a possibility (extremely small) that he could match the child at all locations”.
What happens in this case: two brothers (not twins) had sex with the same girl. Girl tells brother A that he is the father but brother B is the actual father. Brother B is unreachable and brother A wants to make sure he is the father so he gets a paternity test. Both brother A and the girl are available for the testing. Does he need to inform the lab technician about this situation? And how accurate could the results be? What kind of result would he need to get to be sure that he is not the father?
Dee says
what does one do when two brothers are alleged fathers, but only one was named as the father, tested 99.9. Should I be satisfied that he indeed is the father or maybe his brother is the father.
Charlie says
Here’s the story…My husbands mom and aunt were both married to the same man. That man is possibly my husband’s father but is not the man who raised him. This man is now dead and my husband is wanting to know if his cousins are actually his cousins/half brothers and sisters by the same father. Is there a way to know since they would have genetics in common through their moms being sisters and the father now being dead.
Ask Kate says
I apologize that I did not get back to these comments sooner. Mandy it is difficult to speculate whether Avuncular testing might return low results like yours when their sibling is in fact your father. Because siblings only share a certain amount of DNA Avuncular testing can sometimes give results that one might not expect.
Matt: If the biological mother is tested it does help with the conclusive nature of the testing. However, we would still appreciate being informed of two alleged fathers being brothers to ensure all proper protocols are followed to provide accurate and conclusive results.
Dee: With results that high I would say that the father tested is the biological father. However, if you still have concerns I would suggest having a DNA test done on the other brother.
Charlie: It can be difficult to tell cousins and half siblings apart. This is because there is already an established biological relationship. If there is a male half sibling the best test I could recommend would be a Y-Chromosome test as this will only test if the two share a common male ancestor. You can find these tests on our website.
Chelsea says
So my dad was with this lady and she got pregnate but my dad thinks its his brothers. So my dad got a paternity test just with him and the child and it came up as 99% could it be his brothers?
Philomena says
So, If two brothers were suspected to have possibly been a childs father and one brother had test done and results were 91.7%, would you say that he was the childs father?
Nikki says
My hubby was tested and the results came back positive. I am not sure if they tested her mother, but we are suspecting that his brother messed around w/ her as well. I am paying for another dna test for my husband and her but if this comes back negative would they be able to tell if it were a family members dna? If they were close to matching?
becky says
hi i have two daughters and would like to prove they dnt have the same father, at the moment i cant get the fathers to do a paternity test and im unsure which test i should now do to prove this. could u advise me of which test i should get? thankyou
Ask Kate says
Philomena: It’s difficult to say. The best choice, when looking for definitive results, is to test EVERYONE. Including the mother would strengthen the result. Including the other brother as well would help even more.
Nikki: That’s a good question. If the test comes back that your husband is excluded as the father, the only thing to know for certain is that he is not the father. If your husband and the child match at several locations, it’s possible that your husband shares those markers with the child’s father. However, it could be because he and the child’s father are related, or it could be that those markers are just very common.
Becky: The short answer is that you need a half vs. full siblingship test. This would test both your daughters, and yourself, and would give you the probability that your daughters share the same father. This test however isn’t as conclusive as a paternity test, and would give you only the LIKELYHOOD that they are full siblings. Siblingship Tests CAN be inconclusive. A paternity test would be less expensive, and would definitively exclude one man from being the father of both girls (with 99.99% certainty).
natalie says
My grandmother slept with two men who were brothers. My mom was born shortly after. Then my uncle & two aunts were born. They were all raised believing brother A was their father, but once he passed, the family started saying that brother B was my mom’s real father. Problem is, both brother A & B are dead. Brother B has a son as well, so is there a way for my mom to compare her dna with that of my uncle, aunts & her “cousin” (who actually might be her half-brother)?
Ask Kate says
Hi Natalie, Your mom could do a DNA siblingship test to determine if her brother is her half-brother or full brother (this would be a “Full vs Half Siblingship” test.) When doing DNA relationship testing, it’s best to use the closest (biologically) relative, and in this case, that would be one of her siblings.
When doing these kinds of tests, it is especially helpful to include the biological mother (your grandmother). If you have specific questions you can call one of our test consultants at 888-404-GENE.
Neva says
Can you tell me if I can have my sister and I tested to see if we have the same father without testing anyone else? I am 42 and I was 41 when my mother admited that my dad might not be my dad. I do not want to hurt the man that I have grown to know and love to be my father. Please advise.
Ask Kate says
http://www.dnatesting.com/more-dna-tests/sibling.php
Neva, you certainly could! What you would want to do is a Full vs. Half siblingship test. When doing this test, it’s best if you can include your mother. This will strengthen your result.
The test can still be done with just you and your sister, how ever it is possible that without your mom, you could have an inconclusive result.
Because you and your sister (or half sister) both received DNA from the same mother, including your mom in the test will allow us to isolate the DNA that comes from her to be sure we are comparing the DNA that you and your sister received from your father.
Tara says
Sorry for commenting but where can I purchase this test
HomeDNA Identigene says
Hi, Tara. You can purchase the DNA-collection kit at CVS, Rite Aid, Walgreens, Walmart, and independent pharmacies.
Leah says
I dated this guy (brother A) for three years. We broke up and occasionally had sex. I stopped having sex with him and about a month-two months later I went out to the bars with his brother (brother B) and we ended up having sex a couple of times when we were drunk. I then found out I was pregnant. We had a paternity test done with me, my daughter, and brother B. The test results were 99.89 %. We never had brother A tested and now I am starting to wonder if I made a terrible mistake not having him tested. Is it possible that brother A could be the father?
anne carl says
could you please tell me if its possible to do a dna test on a man and a woman who have different mothers but potentially the same fathers?
Ask Kate says
Hi Anne,
You sure can do this test. It would be a sibling ship test, Half vs. Unrelated. This test would tell you the likleyhood that you share a parent in common (are half siblings) vs having no common parents (un-related).
http://www.dnatesting.com/more-dna-tests/sibling.php
andrea d. mathias says
when my father was alive he had an affair that produced a son.recently this came to light and the son (my half brother) and I would like to have a dna test to determine whether or not we are related.what test would be reccomended considering all parents are deceased.thanking you in advanced Andrea
IDENTIGENE says
Hi, Andrea! Is there doubt whether you share the same father? From what you wrote it seems apparent that you are indeed half-siblings. That being said, we can definitely do sibling testing to confirm if you are half-siblings. Testing where all parents and potential parents are deceased involves family reconstruction and runs about $399. We suggest you contact our Client Support Center at 888-404-4363, M-F from 9 AM to 5:30 PM Eastern Time. One of our experts can explain your options in detail and help arrange for testing, if you decide to do so.
Karen says
I have just had a DNA test with someone I think is my uncle, however the test has come back “inconclusive”. The lab has offered an extra test but I am unsure if this is going to make any difference. Can an inconclusive test have any chance of coming back positive?
Ask Kate says
Dear Karen,
An inconclusive result is just that: inconclusive; meaning that the lab cannot tell whether the person is the biological father. There is no way to know for sure without additional testing; inconclusive tests do not “lean” one way or the other. However, there is still a way to answer the paternity question.
One common issue with inconclusive results is that the tested alleged father IS NOT the biological father, but IS RELATED to the biological father (and also related to the tested child, though not the father of the child). An uncle will typically share more DNA in common with a niece or nephew than someone else who is unrelated to the child. In most cases it is clear that the tested father is not the father but still related to the individual. However, in some cases the lab needs more information. The best option is usually to include the biological mother in the test.
Remember, paternity tests work by looking for matches between your DNA and the tested father’s DNA. At every location the lab reviews, you (the child) have two allele numbers. One of these numbers comes from your biological father and the other from your biological mother. The biological father will match at all locations. Without the mother, there are TWO chances for the tested father to match the child at each location, because he can match EITHER of the child’s allele numbers. If the mother is included, the lab now knows which of the child’s alleles belong to the mother and which belong to the father. Now, the tested father has only ONE chance to match the child at each location. When the mother is included, the strength of any match increases because there’s a higher chance that the match shows paternity – the lab knows for sure that the match is consistent with the father because they eliminated the DNA that came from the mother. Also, there may be some matches that now become excluded (because the tested father matched an allele number that came from the child’s mother and not the child’s father).
The strength of the matches determines the probability of paternity. If the probability is less than 99%, the test is considered inconclusive. Including the mother will make the result clearly fall one way or the other (but it’s impossible to know which way it will go until she is tested). Also, testing the other possible father usually helps, too. Often an uncle may show an inconclusive result but the true biological father will show a very conclusive result. In either case, though, including the mother helps strengthen the test results.
For a detailed discussion about DNA paternity testing process and including the mother, please see these links:
http://www.dnatesting.com/genetipedia/article/paternity-test-process
http://www.dnatesting.com/genetipedia/article/why-test-the-mother
Robert says
Dear Kate, Would a DNA test determine if my brothers have the same biological father that I have even though our father or fathers are deceased?
Ask Kate says
Hi Robert,
Yes, a DNA test could determine if your brothers are full siblings (share the same parents) or are half-siblings (share one parent) even without the father’s DNA.
For the strongest result, the mother’s samples should be included, if at all possible.
For more information on Siblingship testing see: http://www.dnatesting.com/more-dna-tests/sibling.php
Cartier Sunglasses says
This guy is really lucky !
Carvalho says
Hi Kate!
Imagine that a mother has in a locci (Penta D) the alleles 9-10 and the child has in the same locci (Penta D) 9-10. In this case how do you know which allele come from the father? Could be 9 or 10? But according to your coments theres only one biological fahter that would match in ALL loccis and then you will know wich allele come from mom in this locci? Correct?
I apreciate you would aswer this?
Thanks in advance.
Kate says
Hi Carvalho,
Sorry it took me a bit to respond to your question, but I wanted to get some feed back from our Lab Director. This is what he has to say:
“This is a very good question and the answer is quite simply, we do not know which Allele was given by mother but we can take this uncertainty into account in our statistical calculations. To explain, we need take a step back and understand how we account for such events such that we can arrive at a Probability of Paternity. To begin, each DNA marker that is used in a paternity test is given a Paternity Index (PI) which is a calculated value based upon the inheritance scenario and genotypes that exist. The PI reflects the weight of the statistical strength of genetic association given the discovered Mother, Child or Alleged Father genotypes. Broken down, the PI is simply a ratio of the test of two different hypotheses: Numerator (the probability that the Alleged Father of a certain race is the Child’s true biological father given the genetic evidence seen) vs. Denominator (probability that a random man of a particular race could be the biological father of the child given the genetic evidence seen). PI must be calculated for each genetic marker (CSF1PO, Penta D, Penta E, FGA, etc.). All PI’s are then multiplied together to get a Combined Paternity Index (CPI). The CPI is then converted to a probability of paternity (such as 99.99%). These are the highest-level of calculation steps that are performed.”
I added a page to the site that walks though your scenario in in great detail. You can view it here:
Understanding Paternity Index
Carvalho says
Dear Kate,
Thanks for your answer. I put this question, because i made a paternity teste with my two childs, they are twins (not identical) and their mother. One of them give 99,9999% (child 1) and the other 99,99999% (child 2)so i was curious to know why was the diference. Even because the one(child 1) wich get 99,9999% is the one that is more identical to me. Both of them had that scenario in Penta D (mother has in a locci (Penta D) the alleles 9-10 and the child has in the same locci (Penta D) 9-10) but only child 1 had same scenario in D5S818, that’s why the probability of paternity was lower correct?
I had a match with both childs at all 15 locations. So even with this scenario i have no reasons to assume that there is anyone else (even related) that can be the father of them, because according to your experience only the true father will macth all 15 markers, even with this scenario.
Thanks in advance.
Best regards.
Sharon DeWeese says
Dear Kate,
I’m adopted and I’ve been contacted by a young lady who thinks I’m her sister. Is there a way to do DNA on the both of us to see if we’re related? We possibly have the same father. However, he passed away this week so we need to do the next step to find out. Thanks for your help.
Kate says
Hi Sharon,
The test you are looking for is a siblingship test. This test could be performed on you and the young lady to determine if you are half-sisters (share one parent) or are un-related. Only you and the young woman would need to participate in the test. It’s recommended to include DNA samples from both of your mothers, but it’s not necessary.
You can read more about it here: http://www.dnatesting.com/more-dna-tests/sibling.php
Christy says
I have a question. I had a half sibling DNA test done with a girl who I thought was my half sister.-same dad different mothers. It came out that they didn’t think we were half siblings according to the test. Is this the final answer? Is this test totally conclusive? It was like 59:1 or something like that. I have the copy of the results, but I just don’t understand it. Thanks.
k humphrey says
can you take a test with you uncle to see if you have same father meaning my grandfather 2 o positives can not make an a- and my father is past and 1 uncle is past he was a+ and grandfather was ab- and aunt was o+ the uncle that i have living is a b these are all my father brother and sister and my grandma was o+
Kate says
DNA paternity testing is done by comparing the loci (or markers) on sections of your DNA, not with blood type. While blood type can sometimes provide clues to paternity it won’t give you the definitive answer that DNA testing will.
You don’t say which relatives are available for testing, so I would encourage you to call one of our test consultants to discuss your individual situation.
kristi says
Kate….My daughters father passed away before paternity was established can his half sister give accurate dna to establish paternity?
Kate says
Hi Kristi,
We can certainly do a DNA test to establish paternity with a half-sister. These type of tests we call “family reconstruction” tests, and they are a little more complex than a standard paternity test. With this type of test we are trying to “reconstruct” or determine what the alleged father’s DNA looks like, by using the DNA of his known relatives.
You don’t mention if your daughter’s grandparents are available for testing. If either of them are available, that would really help. If he had another sibling to test, that would also be helpful.
In short, I’d encourage you to call one of our test consultants. They would be able to talk to your about your particular situation so that you get the strongest possible result. You can call 1-888-404-4363
Beth says
Hello,
I had a DNA test taken to prove my father was my father when i was 10 (13 yrs ago). My sister (21 now) never had the opportunity to have a DNA test done to find out who her father is. My mother insists that my father ( we also have heard ‘rumors’ from other family members that it may be his cousin) is also my sisters father, and we have been trying to get him to take the test (even through a lawyer and all of that) but have been unsuccessful with getting his cooperation. My sister desperatly wants to know if this man is in fact her father. My question is…If my sister and I (share the same mother) took a DNA test, what are the chances of being able to tell if we share the same father also?
Kate says
Hi Beth!
You are in luck! The test you want, is a siblingship test (full vs half). In tests like this it is especially helpful to include your mother’s sample. Including your mother in the test will strengthen your results. If you have further questions, encourage you to call me (or any of our test consultants) at 1-888-404-GENE and we can give you more advice on your particular situation.
Kristen Szathmary says
Dear Kay,
My husband when he was 17/18 got two girls pregnant within a three month period. Boy 1 born 10/8/87 boy 2 born 3/24/88 (boy 2 birth date is approx not quite sure exact birthday) any way boy 2 was just now told that there is a chance that my husbands brother could be the father. My husband was tested way back when 2 was born and the results were 99.9% but is this new findings of the brother being a possability of paterinty? All are still alive what are the needed steps to find the true parent. After all these years my hubby has moved on gotten married and was just told this. He had dna done in the first place in 88 paid a lot of child support and medical bills for boy 2 and now she is telling her son my hubby might not be his true father but his uncle is. My husband is torn but would like to find out the truth and so would boy 2. Please and thank you for any help you can provide.
Kristen
Amber says
Dear Kristen,
Thank you for contacting Identigene. When two alleged fathers are brothers, difinitive results are still possible. We always recommend testing both alleged fathers with the child. We also recommend testing the child’s mother if she is available. This does help in the testing process. If only one brother is available for testing you want to notify the lab a head of time.
Tracy says
I am adopted and found both of my parents many years ago. I never had a DNA test with my father, but he said the story lined up and we let it go at that. He has now passed, and I have been told that my birth mother told him he was not my father. There is no way she will agree to a dna test, but I still need to know about my father. One of his children, my believed-to-be half-sister, is willing to do the dna test. His sister, my supposed aunt, is also a possibility. Who would it be best for me to take the dna test with … my half-sister or aunt? Thank you.
Amber says
Hi Tracy,
When the alleged father is not available for testing, you can choose the sibling DNA test or the aunt/uncle DNA test. Both of these tests will give a probability percentage, and are not as conclusive as a paternity test. However, out of the two I would recommend the sibling DNA test. For best results I would also recommend including her biological mother if she is available. You stated your Mom will not participate, however, we ask for as many biological mothers as possible to test as well.
Nadi says
Hi My name is nadia I’am from the Bronx, NY
We are 3 sister from there mother and one father, my father DNA is very
strong, everyone in the family look like in something, but one of my sister
is completely different of us, we have some doubt because her mother used to be married when she got with my dad, I’m the oldest one and since my father is not around we want to find out if she is our sister.
Can we do DNA between sister a least two of us, since both of us can to USA with a DNA test throughout Immigration department. and where can we get the DNA kit for that type of test.
Thank u
Amber says
Hi Nadi,
Yes, we offer Sibling DNA testing. The best option would be to test all 3 sisters with any of the Mothers that are available. This is a more complex testing process. I would recommend contacting our client support team (they are wonderful and very helpful) at 888-404-4363 Mon-Fri 9am-8pm EST. They would be happy to assist you with getting everything set up.
tania traynor says
I would like to do a sibling test with my brother. Our Mother passed away two years ago, is there any chance that there may be any of her dna available amongst her belongings ie toothbrush, hairbrush.
thank you for your time
Amber says
Hi Tania,
You can do a sibling DNA test with you and your brother to determine if there is a biological relationship. The best option would be to include any other full siblings you or your brother may as well. There may be a chance of your Mother’s DNA on certain objects, however, they are more expensive to test and there is no guarantee a profile will be found.
Natasha says
Hi..i have a funny but very important question.. If a dna test is done to prove father and daughter paternity. but the portential father is already a half brother to the daughter same dad different mom.. how can the DNA test determine if the half brother is the dad… i guest my question is if you are doing a pertenity test. For someone who already related as half brother and sister how can a dna show a brother is the dad.. its complicate.. i hope you take the time to answer my question
Amber says
Hi Natasha,
Thank you for your question. This is a very complicated situation, however, it is something that can be looked into. When you submit samples to the lab they do need to be made aware of the relationships. There may also be others that the lab would want to include in the testing as well. I would be happy to speak with you more about this.
katisleidys martinez says
can i do an dna test with the dads sister ?
Amber says
Hello Katisleidys,
It’s always best to complete a paternity test with the alleged father and child, however, if the alleged father is not available you can choose the aunt/uncle test if the sister of the alleged father is a full sibling. For this test you would want the mother of the child to participate as well if at all possible.
Mary says
I am pregnant and am not sure which brother is the father. one does not know that he is potiently the father. When the baby is born if only one brother is tested, even if he is not the father will the dna test say he is?
KD says
Hello Mary,
The answer is no unless the brothers are identical twins. When you are ready to take the test, please contact our customer service department and discuss your specific situation. We like to know that the two possible fathers are brothers. We also suggest you swab yourself along with the baby for the strongest results. Our number is 888-404-4363. Thank you for contacting IDENTIGENE.
John says
I want to find out if my sister(with the same mother)& I have the same mother and father. Can I do that with samples from my sister, my mom & myself only?
Getting a sample from her father is impossible.
KD says
Hi John,
Thank you for contacting Identigene. The answer is yes. You would conduct a half vs full DNA siblingship test. You can contact our client support staff to learn more about this type of testing and to arrange for a kit to be shipped to you. Also, having your mom test will help strengthen the results. Our number is 888-404-4363.
Cheryl says
Hi,
Is it possible to test myself and a cousin who is potentially my sister without our fathers DNA as they are both deceased. Story has it that we share the same father but need a DNA to prove this. We both have different mothers. Both deceased fathers are brothers. So in other words my biological father is suspected to be her father as well, but she has been raised to believe his brother is her father.
KD says
Dear Cheryl,
We could test you to see if you are siblings. It is called a sibling test. For more information, please visit http://www.dnatesting.com/dna-paternity-test/more-dna-testing/sibling-dna-test. It is best to call our client support staff at 888-404-4363 to explain your situation so that they can recommend the best test for your needs as well as answer any of your questions. Thanks for contacting Identigene.
lisa bell says
i slept with brother 1 in august, brother 2 on 1st august and 17 of august 2003. i cant remmeber m last period. however gave birth on april 11, 2004. how a dna can differiate the process
KD says
Dear Lisa,
A DNA paternity test would tell which brother is the biological father unless they are identical twins. You can contact our client support staff to help guide you in the testing process. Our number is 888-404-4363. Thanks for contacting Identigene. Best!
kay says
hi, i have had a prenatal test done on poss deff bio father came back 99.9% positive.
i want to get another high loci test done on same possible father. second possible father is suspected half brother not available for test. i will be tested as well. could both half brothers matcj all locis (is it possible?), also if result comes back positive should i be happy with results? thank you
KD says
Kay,
No, the only way brothers would have the same DNA and match at all locis would be for them to be identical twins. The father you tested is the correct biological father if the results were 99.9%.
Anonymous says
my mother cheated on my dad around the time I was conceived she slept with his younger brother who is deceased how accurate would the DNA test be to find out which brother is my biological father? I have brothers from my “father” but we look NOTHING alike they have red hair blue eyes and are fair complected I have brown hair green eyes and olive complexion I know that doesn’t mean much but it was always a joke growing up till I was told in my 20’s that my dad most likely isn’t my dad. I have female cousins from my “uncle” they are olive complected, brown eyes and brown hair. My uncle had green eyes. Please advise
KD says
Dear Anonymous, Please don’t rely on facial features or hair color for paternity confirmation. If your father is willing to take a DNA paternity test with you, we can determine paternity even if the other alleged father is his brother. Identical twins are the only people that share identical DNA. You mentioned “younger” brother so they weren’t identical. Before sending in your swabs, please contact our client support staff and alert them to the other alleged father being related so that the laboratory has a note about the close kinship. Thank you.
maureen moehr says
My son and daughter in law are having a baby girl.
My daughter had a baby with my daughter in laws brother will both girls have the same D.N.A. ?
KD says
Dear Maureen,
No. They will not have the same DNA. Identical twins are the only people that can have identical DNA. When people are related, DNA will indicate the biological relationship but they won’t have the SAME DNA. Hope this clarifies. Thanks for your question.
Gwen says
Is it possible to determine paternity if the “fathers” are brothers and both are deceased. There are 4 remaining siblings. However the plot thickens. Between the child’s parents- they have three kids. It is believed that the oldest child is one of the brothers offspring and the other two children are off spring from the other brother. I am needing to know how to determine paternity for the oldest child. Can this be done and how?
KD says
Gwen,
I am forwarding this question to our lab director and I will respond with her expertise. Thank you for contacting Identigene.
KD says
Dear Gwen,
Our lab director took a look at your questions and tried to answer but he wanted to make sure he understood the question to the best of his ability. First, please confirm:
1) the 4 “remaining siblings†are full-siblings of the two alleged fathers (who are full-brothers),
2) one of the two alleged fathers has two known children,
3) the child in question (“oldest childâ€Â) is the offspring of either of the two alleged fathers and the question is which one.
If all of the facts are correct above, then we would be able to address this with our technology, although since the two alleged fathers are full-siblings, there would be a good chance of an inconclusive result. In addition, we would also need to know whether the three children share the same mother, or whether there are two mothers, or three different mothers involved. Being able to also test the mother(s) would help tremendously to decrease the chance of an inconclusive result. If any of the three assumptions are incorrect, we cannot determine paternity.
jessica says
Can i have a dna test done on me and my brother to see if his real father is my father as well?
KD says
Jessica,
Yes. This would be a sibling test. Would your mom be willing to swab? This would strengthen the results. Read more about Identigene sibling testing at http://www.dnatesting.com/dna-paternity-test/more-dna-testing/sibling-dna-test and please contact our client support staff at 888-404-4363 to arrange testing. Thank you for contacting Identigene.
Gwen says
You hit it right on the nose. The mother for the three “children” is the same for all three and she is still alive and able to provide a sample.
Gwen says
Also, would the three “children” or any of the serviving siblings of the deceased need to be tested? How accurate would the probability to determine parentage be? Thank you for your time and knowledge!
lisa says
Can a dna test determine if my exhusband is the father of my der sister’s son? The son in question is my sister’s older son. Born before we got married. I need to know if my daughter has a half brother or a cousin. If so… what test will be best and where?
KD says
Lisa,
You will need the alleged father (your ex-husband) to test along with your sister’s older son in order to determine paternity through a DNA paternity test. If you would like to determine siblingship, you can take a sibling test (testing your daughter and your sister’s older son). Sibling DNA testing http://www.dnatesting.com/dna-paternity-test/more-dna-testing/sibling-dna-test determines if two individuals share one or both parents. DNA Testing with a possible brother or sister can help answer paternity questions when the possible father is not available to be tested. Half siblings share one parent. For example, a brother and a sister may share the same mother, but not the same father. Or, two sisters may share the same father, but not the same mother. When ordering your Sibling DNA Test, make sure you tell client support (888-404-4363) which test type you need. IDENTIGENE DNA testing experts help guide you through the process and answer all of your questions; both before and after the test.
meron says
Is it possible to determine if a girl is my half sister or my niece just only with her and my DNA. My niece grow up beliving my brother was her father but before her mother died she told my niece, her grand father may be her biological father. My father and brother are both deceased and my mom is out of the picture too..
KD says
Meron,
A sibling test would be able to tell you if you and the other participant are half siblings. All we require is you and the possible sibling to test. The mothers are recommended but not required. Please contact our client support staff to arrange for testing. 888-404-4363 Thank you.
Rita Acosta says
I have a question. Can you email me your answer in case I don’t find the site again? Thanks.
We, have always thought we were cousins. My mother and her daddy are siblings. We have been told that we may have the same daddy. Can tests tell us if we are half sisters if we are not cousins?
Thank you so very much.
KD says
Rita,
Yes. A sibling test can tell you if you are half siblings. Please contact our client support staff so that they can help get you set up with the appropriate DNA test to meet your needs and answer your relationship questions. Thank you. 888-404-4363
Karla Fegler says
Eight years ago, my fiance slept with his younger brother’s girlfriend. She was 18. His brother was 15 and he was 19. She became pregnant. She only had my fiance tested because she was afraid of being charged with statutory rape. The test results showed that my fiance shared DNA markers with the child, but not all. She did not disclose to the child support agency that his younger brother should have been tested so my fiance was named as the father. We have been raising the child half the time ever since. We recently obtained the child’s medical records and learned that the child was conceived two months prior to my fiance sleeping with her. We tried to get the courts to reopen the case and order another paternity test but they denied us. We feel that justice needs to be served for everyone involved. We don’t have a lot of money and his brother only wants to redo the test if it is done by a lab. He doesn’t really want to attempt the at home test. After reading your blog it says that my fiance would have matched on every marker if he was the father but he didn’t. How can we go about proving that his brother is the father without spending money we don’t have. We feel that she should be held responsible for lying to obtain benefits. Can you help us?
KD says
Dear Karla,
We are so sorry to hear about your situation. Anytime there is a paternity question and the two alleged fathers are closely related, we recommend telling us this detail (explained in the FAQ section of the instructions) and recommend the mother’s DNA. We will also use more DNA markers so that we can achieve accurate results. Our lab is accredited for legal collections and I would recommend your fiance and his brother consider retesting through IDENTIGENE and upgrading to a legal collection. If your fiance is on the birth certificate, he will ultimately need a DNA paternity test to prove he is not the biological father and possibly seek disestablishment of paternity through the State. We recommend visiting your State’s government page and searching for guidelines for disestablishing paternity. There are strict time limits in some states.
We hope this advice helps. Please tell your fiance’s brother, IDENTIGENE is a DNA laboratory and accredited by AABB, LAB, and NYSDOH for legal testing. He can expect the same testing procedures using our kit as he would if he used a local lab such as Quest Diagnostics or LabCorp.
Please call our client support with any questions or to set up a legal collection. 1-888-404-4363. Thank you.
Misty says
My sister and I have the same mother, who is deceased, and we are unsure if we share the same father. The other possibility is his brother (no they are not twins) However, my father is deceased also. If we take a DNA test would it be better to test us all three or will the two of them alone be able to get results back that show whether he is the father or not?
KD says
Dear Misty,
This is a difficult situation but we could try and get you an answer of paternity. Our staff needs to know the situation so they can run additional DNA markers. Please contact us at 1-888-404-4363 and they can explain how a paternity test would work in your situation and what to expect for results. Thank you.
SDarnellC says
My brother had a child with his ex but the child doesn’t look like him or anybody in our family. The child now 12 looks exactly like another guy her mother was sleeping with. The problem is neither my brother or his ex wants to test her cause he doesn’t believe she cheated and she claims she didn’t. The other guy refuses to answer my question or get involved because of his current relationship. So I wanted to know if it was possible for me to test my nice with just sample from her and myself to see if we’re related. I really want to know because the child recently had a blood transfusion and her mother didn’t call my brother until after the procedure. This was extremely strange because she usually calls him even if she has a headache!!!,
KD says
Dear S. Darnell,
We would advise you to contact our client support staff at 1-888-404-4363 to discuss your situation. An aunt DNA test is a possibility, however, the blood transfusion is a factor in testing. Client support can provide you with your options. Thank you.
iconfused says
Hey
I was wondering if you could help is it possible for me and a 1st cousin to be tested for half siblings we are most definitely 1st cousins as our mothers are sisters my father is now deceased so I would be provider of his dna we are both female or could it be possible to show inconclusive as of our mothers relationship
Thank you in advance
KD says
Dear Iconfused,
Yes, we can test you and your cousin to see if you are half siblings. Unfortunately, there is always a possibility for inconclusive results. You can improve your chances of a conclusive result if you test both mothers, your cousin, yourself, as well as any additional known siblings who have the same father as you. I would recommend contacting our client support staff 1-888-404-4363 to explain your needs. They will be able to recommend the best testing scenario for your situation so that our test has the most likelihood of producing a conclusive result. Hope this helps and good luck with your test!
l.prince says
My brother just passed away and at his funeral , a sister to my brother’s son says she is my brother’s daughter. I got some of my brother’s hair and also managed to get a couple of hairs from her & her cigarette butt. Is there anyway to use what I have collected to see if she is my brother’s daughter?
KD says
Dear I.prince,
We are sorry for your loss. Unfortunately, we can only test cheek cells with our DNA kits. You can conduct an online search for companies that DNA test hair, skin, glasses, utensils, etc. Best of luck! IDENTIGENE
resham says
hi we are 1st cousin i am male and my cousin is female… and our fathers are brother. can we give some where with DNA test proof that we are cousin !! is it possible from DNA test?
breanna says
Unfortunately, we do not have a test to prove a cousin relationship. Best of luck to you in your search!
nita says
Hi I have a man that claims to be my fathers son…however my dad and the man took a dna test and it came back that he isn’t the father. Is there a way that he & I can take a test to see if we get the same results. He doesn’t believe the results he got between he and my father.
breanna says
Hi Nita,
The IDENTIGENE paternity test is for an alleged father and child, the mother is optional for testing. What kind of test was done with your father and the alleged father of the child? Was the child included on this test?
In answer to your second question, yes, our paternity test kit sold at CVS, Rite Aid, Walgreens and Walmart is for the alleged father, child and mother. If you have any further questions about testing, please contact our friendly client support staff at 1-888-404-4363. Thank you!
kellin says
I have a question i am very curious about. If a half brother and sister ( who share the same mother but not father) have a child together ( a girl) how possible is it that a paternity test will be effective at proving hes the father? Is it possible that it will be inconclusive? What is it likely to say?
breanna says
Hi Kellin,
Firstly, you will want to call and inform the lab of your situation and that the mother and the alleged father are half siblings, as additional testing will likely be needed. If the test goes through and we find that half brother is not the father or he is “Excluded”, you will have a definitive answer that he is not the father. If we cannot rule the half brother out of paternity, the result may come back “Inconclusive” or “Not Excluded” (he is the father). If the results come back inconclusive, it would be advised to test any other unrelated alleged fathers for paternity. Hope this helps to answer your question.
Patricia Olmstead says
There has always been a question as to who my younger brother’s father was. Both parents are dead. Me, my older brother, and my younger brother recently had a DNA test done. The results came back showing my older brother and I as brother and sister. But the test showed our younger brother was our nephew. What relation would the father of our younger brother need to be to make him our nephew? Could the tests be wrong?
breanna says
Hi Patricia,
From the information you have provided in your question, it looks as if a siblingship test was done by another laboratory. A siblingship test will tell you if you and your siblings are full or half siblings. A test like this will not indicate aunt, uncle or niece and nephew relationships. We suggest that you contact the laboratory who did your test and ask them to explain what your results mean. If you tested with IDENTIGENE, we would be happy to help you understand your results. Our phone number is 1-888-404-4363. Hope this helps with some of your questions.
fitawrary says
is ther a way of knowing my dead brother’s real kid with my DNA?
my brother’s dead body is not found.he passed away in war front.
Identigene says
Firstly, we’re sorry to hear of your loss. We appreciate his service and send condolences to you and your family. In regards to your question, yes, there is a way to know if your deceased brother has a child even without his DNA. The more people we have available to test from your brother’s direct family (parents or siblings) and if we have DNA from the biological mother the more likely we will be able to produce a conclusive result. This type of testing is called a family reconstruction, which means we take DNA from your brother’s family to reconstruct his DNA. Then when compared with the mother and child we can hopefully produce conclusive results. It would be best if you contacted our friendly client support team to discuss what family members are available for testing and which test would give the most conclusive answer to the paternity of the child. They can be reached at 1-888-404-4363 M-F 9 a.m.- 8 p.m. ET.
Ovidia Lasley says
Hi my name is Ovidia Lasley and me and my sister want to know if we have the same dad we ask our mom but she is lie to us my sister do not look like our dad and lot of people is tell us that we don’t have the same dad we just want to know the true please help us out with some answers we really want to know to know thank you so much
God Bless
Identigene says
Hi Ovidia,
Yes we have tests that can help you determine if you have the same dad. Since this test would most likely be a sibling test, and not a paternity test, it would be best if you contacted Identigene to find the best option for you. Our contact phone number is 1-888-404-4363 M-F 9 a.m.- 8 p.m. ET. We would be happy to answer all of your questions!
michelle parkin says
Hi my brother passed away last year we had the same mum (also passed) and i was always told we had different dads but now i have been told its likely we had the same dad
if me and my brothers daughter had a DNA would it tell me if me and my brother did have the same mum and dad,
Michelle
Identigene says
Hi Michelle,
We are sorry to hear of your loss of your mother and brother. If your brother’s father is known, it would be best to conduct a paternity test with him to determine if you share the same father, if however, he is not available or you are not certain that he is your brother’s father, we have other means to determine the answer to your question.
We are able to test other family members to help with this question, called a family reconstruction test. We advise you to contact Identigene at 1-888-404-4363 and speak with one of our friendly client support staff members about what the best options you have. They will also be able to help you with pricing information and any other questions you may have about the testing process.
Sanaa says
Can you test two children of a deceased man? One youre sure belongs to a man against another who you are unsure of to see if he is the father of the second child? What is this test called?
Identigene says
Hi Sanaa,
Yes, we do offer a test for this. It is called a siblingship test.
If both children have the same mother and you want to find out if they have the same father we would do a full vs. half siblingship test which would tell you if they are full siblings (share the same mother and father) or if they are half siblings (share the same mother, but not the same father).
If the children do not share the same mother and you want to find out if they have the same father, we would do a half vs. unrelated test which would tell you if they are unrelated (do not share a mother or father) or if they are half siblings (share the same father, but not the same mother).
You will need to contact us to set this test up. We will be able to send supplies and instructions for collection and you will send us back samples for testing. Results will typically take longer than the normal paternity test. In addition, this test also costs more than our retail paternity kit. Please give us a call at 1-888-404-GENE to talk with us about which test would be best for your situation. We would be happy to answer any questions you have!
cinnamon says
I am a mother of a son who does not know if he is the biological father to a little girl. He is in jail and myself as a concerned possible grandma would like to know if the little girl is our family. Is there a way i can take a dna test in place of my son to determine whether or not she is his??
Identigene says
Hi Cinnamon,
Yes, you would be able to take what we call a grandparentage test. If your son’s father is available to test with you and your grandson, this would be even better. This test is not avaialble at retail so you will need to contact us via phone to get one sent to you. Please call us at 1-888-404-GENE, Monday- Friday, 9 a.m.- 8 p.m. ET.
BAHMAN says
I ALREADY RECEIVED PERSONAL PATERNITY ANALYSIS REPORT BUT I NEED YOUR CONFIRMATION REGARDING TO THE REPORTS, PLEASE HELP ME HOW CAN I RECEIVE THEM?
Identigene says
Hi Bahman,
I am understanding that you have already received your results from IDENTIGENE and are now looking for a certified report from us to confirm your results?
If this is the case, and you purchased the IDENTIGENE DNA Paternity Test Kit from your local convenience store, you will need to set up a legal collection. We do consider that you have already taken a test with us, therefore the price is $329 to upgrade to a LEGAL test through IDENTIGENE. After we set up an appointment for a third party to witness, collect, and send the swabs to our lab, we will provide you with results that are admissible in court.
I hope this helps in answering your question. If you continue to have questions, please feel free to call our friendly client support at 1-888-404-GENE, Monday- Friday, 9 a.m.-8 p.m. ET. We would be happy to assist you! Thank you for your comment!
jova says
I would like to know if it is possible to take a dna test find out if my dad is indeed my biological father. But the thing is my dad does not live no were close so i wanted to know if its possible to use my dads brothers dna?
Identigene says
Hi Jova,
Great question!
To test a sibling of the alleged father the test is called an avuncular test. The Avuncular test is $399 and typically takes 5 business days to process. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. It is strongly suggested that you speak with one of our DNA testing consultants before ordering the test so that we can answer any further questions you may have.
If you buy a home paternity test kit at your local pharmacy (available at Walgreens, Rite Aid, CVS and Walmart pharmacies) you can send the collection materials to the person, in your case the alleged father, who lives in another state so they can collect their samples, or they can simply buy their own kit in order to collect their samples.
You can either have the other person send the samples to you so that you can send all of the samples in at the same time, or they can be sent in to us separately. If they are going to be sent in separately, we suggest that you call us to pre-pay for the testing so that we can give you a case number to write on the specimen envelopes. This will help to ensure that all of the samples are linked to the same case when they arrive at our laboratory. You can also order a test from us over the phone and we will send the kit supplies to each person directly.
Our friendly client support would be more than happy to assist you in that matter. You can reach us at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. I hope this helped answer your question. Thank you for your comment!
Marge Browne says
Can a hair sample from a brother and a sister prove that they had the same father?
Identigene says
Hi Marge,
Thank you for your question! The preferred collection method for DNA samples industry wide is a cheek cell sample which is taken by swabbing the inside of the cheek in the mouth using a special swab that we provide in our kits. This is the easiest sample to work with and any other type of sample will be considered a special specimen. All special specimens require an additional fee of $400 to process the special specimen aside from the lab fee of $399 for the sibling test. We cannot guarantee that we will be able to produce results with a special specimen. We also require a consent signature for all participants being tested. With hair, we would need at least 10 hair strands with the follicles attached. Please feel free to contact our friendly client support at 888-404-GENE, Monday – Friday 9AM-8PM ET for an approval to send the specimen into us. All special specimens must be pre-approved by our lab director before they will be accepted. I hope this answers your question!
Roxanne says
Do you use the 16 marker system or 41?
Identigene says
Hi Roxanne,
IDENTIGENE uses 16 markers with relationship testing.
I hope this helped, thank you for your patience in answering your question. If you have any others, feel free to contact our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
terry darami says
the father of the questionable son is dead,,,can a DNA test be done with the two brothers and mother that is alive????
Identigene says
Hi Terry,
Our condolences to your family, as we know paternity question is a life changing event within itself. As for your question, we do have other options when the alleged father is not available to test. We can do other DNA relationship tests to determine paternity, such as, Grandparent DNA (alleged father’s parents, $399), Sibling DNA (alleged father’s other children, $399), and Avuncular DNA (alleged father’s brother/ sister, $399) test. It would be better to call in, so we can help you decide which test would better fit your situation depending on the available participants. You can reach our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET, they would be more than happy in giving you more details on the types of tests available. I hope this information is helpful. Thank you for your comment!
babygirl says
yes I have a question…I am 42 and want to know how to go about getting a DNA from man believed to be my father. can the law make him test to prove he is my father?
Identigene says
Hi Babygirl,
Thank you for your patience, as we know paternity questions have life changing results. An option you can consider is getting a court-ordered paternity test. With a legal test, the results will uphold in any court. Each state may have variable laws with DNA testing, for example, New York residents must take a legal paternity test. Depending on your state, there may be a law for ways in how you can approach the question of paternity. Please give our friendly client support a call at 1-888-404-GENE, Monday – Friday 9AM-8PM ET, we can further discuss the details to be able to provide you with accurate information pertaining to your case. Thank you for your comment!
PeterV3 says
Dear Identigene rep:
I’ve read the previous comments and have been impressed by your thorough and helpful replies. I am an adult male interested in verifying whether my father is, in fact, my biological father. The only other person it could possibly be is his long-since-deceased half-brother. As this is simply to satisfy personal curiosity, I don’t need any results that are court-admissible, etc. I just want to be certain that any test which would confirm that the man who is currently held as my biological father would rule out the possibility of his (half-) brother being my biological father.
Also, what are the various acceptable types of sample collection needed? I could provide a cheek swab or anything else necessary for myself, but possibly only a hair sample from my father.
Thank you for your help.
Identigene says
Hi PeterV3,
Thank you for your interest in IDENTIGENE! I hope the information we provide can be helpful in answering all your questions.
If you just want a DNA test done for personal reasons, then the DNA Paternity Test collection kit is perfect for you.
The personal DNA Paternity Test can be purchased at your local Walmart, Walgreens, Rite Aid and CVS pharmacies. This kit will include everything you need to send in your samples, and simply makes the process more convenient for you. The biggest advantage of being able to buy the kit at your local pharmacy is that we are able to provide the testing at a more reasonable price. You can pick up the kit for about $30 at any of the participating pharmacies, and the lab fee to test 1 alleged father, 1 child and the biological mother (strongly recommended, but optional) is $129. I understand there is another father in question who is deceased and related to your now alleged father? Even when to men are full brothers they still have very unique DNA profiles. Half brothers would have even more separation since they only share one parent. What we recommend is advising us of this relationship prior to when testing begins, either by calling our friendly client support or sending in a note with your testing kit.
The preferred collection method for DNA samples industry wide is a cheek cell sample which is taken by swabbing the inside of the cheek in the mouth using a special swab that we provide in our kits. This is the easiest sample to work with and any other type of sample will be considered a special specimen. All special specimens require an additional fee of $400 to process and we cannot guarantee that we will be able to produce results with a special specimen. We also require a consent signature for all participants being tested. With hair, we would need at least 10 hair strands with the follicles attached. All special specimens must be pre-approved before they will be accepted. I hope this answers your question.
If you have anymore questions, please contact our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Shyenne says
Hi can I test my son and daughter to see if they share the same father!
Identigene says
Hi Shyenne,
Thank you for your interest in Identigene. As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
I hope this information helps answer your question. Please feel free to call our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. We are more than happy to assist you! Thank you for your comment!
Mary Smoak says
I have a question….I have a half brother (we share the same mother). Our mother says that he has a different father than I do. Is there anyway we can find out if we share the same father (father isn’t willing to be tested though).
Identigene says
Hi Mary,
Thank you for your patience! As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
I hope this information helps, if you have any more questions please feel free to contact our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you!
David says
Hi
I would like to know if I can get a test of a child to find out if he is either mine or my brothers without him testing because he refuses to take it is their anyway possible? We are 18 months apart in age please let me know asap thank you for your time
Identigene says
Hi David,
I understand you are wanting to test yourself and your brother with a child, but not include your brother in the test process? Are you full brothers? In cases where two or more alleged fathers are related to each other, definitive results are still possible.
For the most conclusive results, test both alleged fathers. The biological mother should be included as well.
If both fathers cannot be tested, be sure you let our lab know that there is a second, related alleged father who is not being tested. The lab can often perform additional analysis for conclusive results. You can reach us at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
David says
Yeah my brother cannot be tested,Just Me,mother and child can be tested. How much would this advanced test cost and how quick can it be done?
Identigene says
Hi David,
The paternity lab fee would still be the same, $129. (If residing outside of NY state.)
We would simply recommend you come in contact with us. You can let us know at prepayment over the phone or, you may also send in a note with your kit explaining the situation with your brother. Typically, the testing will take 2 full business days once we receive the samples in our lab. I hope this information helps. If you have any questions or concerns, please call our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comments!
cherieT says
My husband recently passed away before I gave birth to our daughter his sister wants a dna test done I agreed my husband and his sister have the same mom not dad and there mom is deceased. Can a dna test be done on his sister and my daughter?
Identigene says
Hi Cherie T,
Our condolences for your loss. Here at IDENTIGENE, we offer different types of relationship testing to be able to provide peace of mind to families. To test a sibling of the alleged father the test is called an avuncular test. The Avuncular test is $399 and typically takes 5 business days to process. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. It is strongly suggested that you speak with one of our DNA testing consultants before ordering the test so that we can answer any further questions you may have, especially with them only being half-siblings.
DNA test results for avuncular testing fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive, or not supported. We also recommend that you, as the biological mother, is included in testing as well. Please give us a call at 888-404-4363, Monday-Friday 9AM-8PM ET, and we will be more than happy to assist you.
Thank you for your comment!
Nixa says
I HAD 4 KIDS WITH MY EX HUSBAND,AFTER WE GOT A DIVORCE HE MARRIED SOME OTHER WOMAN,SHE MISTREATED MY KIDS AND WOULD’NT LET MY KIDS NEAR THEIR DAD.THE LAST THING SHE DID TO HURT ME WAS TELL MY SON THAT HER HUSBAND WAS’NT HIS FATHER,MY KIDS HAVE GOTTEN TO THE POINT THAT THEY WONT TALK TO ME.I NEED A DNA TEST BUT DON’T KNOW HOW TO GO ABOUT DOING THIS.IM 69 AND WOULD LIKE TO SOLVE THIS PROBLEM SO MY KIDS KNOW THAT SHE WAS LIEYING,HELP ME!!!
Identigene says
Hi Nixa,
Here at IDENTIGENE our goal is to help you achieve the peace of mind you deserve! If you just want a DNA test done for personal reasons, then the DNA Paternity Test collection kit is perfect for you. If you need the test for legal reasons, you will need to give us a call at 888-404-4363.
The personal DNA Paternity Test can be purchased at your local Walmart, Walgreens, Rite Aid and CVS pharmacies. This kit will include everything you need to send in your samples, and simply makes the process more convenient for you. The biggest advantage of being able to buy the kit at your local pharmacy is that we are able to provide the testing at a more reasonable price. You can pick up the kit for about $30 at any of the participating pharmacies, and the lab fee to test 1 alleged father, 1 child and the biological mother (strongly recommended, but optional) is $129. If you are interested in testing all 4 of your children it would cost an additional $89 per child.
The kit comes with an order form, collection swabs for the alleged father, one child and the biological mother, 3 specimen envelopes, an instructions booklet and a postage paid envelope for mailing off your samples. If you decide to use the home paternity test kit, please read all of the instructions carefully before collecting the samples and mailing off the kit. The order form and the specimen envelopes will need to be filled out completely. Any missing information could delay the release of your results.
The order form included in your kit gives you 3 options for receiving results. You can have a copy sent to you by mail, view your results on our website by logging into your account, and/or give us a call with your results password and we can go over the results with you on the phone. Once we receive your samples and start your testing it usually takes 2 business days, just depending on the samples.
I hope this answers your questions. Feel free to give us a call 1-888-404-4363, Monday-Friday 9AM-8PM ET with any further questions you may have and we will be more than happy to help you!
Stacey Rynes says
Hello my husband and i had a daughter 10yrs ago,and this women came in the picture recently …saying that her daughter is my husband also he does nt want to take a test for her ,how can i go about doing it myself with my daughter and the little girl can i do that or no
Identigene says
Hi Stacey,
Thank you for your patience! We do offer sibling DNA tests at IDENTIGENE. We can test to see if your daughter is a half sibling or unrelated to the child of the second mother. We recommend that you, your daughter, the second mother and her child test for a better probability of a conclusive result. However, have in mind there is still a strong chance your result may be inconclusive, if the alleged father is not testing. You may call our friendly client support if you would like to set up a sibling test or if you have any more questions. You can reach us at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Shannon W. Black says
My father was just recently murdered in Camden NJ. And I need to know if this young lady Kimberly Pattern is my half sister or not. I grew up the only child, so I want to know.
Identigene says
Hi Shannon,
Our condolences to your family during this hard time. We do offer a Sibling DNA test that can test to see if you are half sisters or unrelated. To decrease your chances at an inconclusive result, we would recommend to have bother biological mothers tested since the alleged father would not be available. If there are any paternal first-degree relatives (brothers, sisters, etc.) we would highly suggest to include them as well. The sibling test allows up to 5 participants to test. The test is priced at $399 and typically takes 5 full business days to release results. I hope this information is helpful. If you would like to order a Sibling Test or have any more questions in general, please call our client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Corey says
My mom has 6 girls. She remarried, 2 of my sisters are from him. The guy she married slept with one of my other sisters, fathered by a different man. My sister now has 3 kids, the first child is suspected to be his child. They are doing a DNA test on the child and my sister’s baby dad of the other 2 children. I was wondering if the test comes back saying my sister’s child is not fathered by the guy she’s with and it might be my mom’s ex fiancee, what does that make the child? My niece or my half sister or both if that’s possible? If I need to clear anything up or rephrase anything please don’t hesitate to email me
Identigene says
Hi Corey,
I am understanding your mother’s ex-husband is a possible alleged father to one of your sister’s daughters? I also understand this man is not your biological father either? If so, biologically, your sister’s daughter would be your niece because the man has no blood relation to you. However, many would argue that blood or DNA relation does not need to be present in order to consider someone a relative or family member. I hope this helps answer your question! If you have any more questions regarding your test, or any other questions in general, please call our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Marie says
My dad died 6 years ago . Can I get a DNA done with my grandpa , his dad , to see if he’s my real father ?
Identigene says
Hi Marie,
Our condolences to your family. We do have a Grandparent test available for situations when the alleged father is unavailable to test. The alleged father’s DNA is reconstructed with the grandparent’s to be able to test in his place. It is $399 when only one grandparent is available and $359 when both grandparents are available. We also highly recommend including your biological mother in testing to decrease the probability of an inconclusive result. Since children receive half their DNA from mom and dad, having the mother will help significantly in determining paternity, especially when the alleged father is not directly available. Typically, testing will take 5 full business days before results are available. If you would like to order a Grandparent test, or have any other questions in general, please call our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Jessica says
My niece and I are wanting to know if we can find out, without any doubt, if my half-brother is in-fact her father. There was a rumor our cousin was her father. There was a test done at birth that says there is 0% chance our maternal cousin was her father, our family makes assumptions this means she is no relation and not my brother’s daughter, is that true? As his half-sister (same mother) can this test be done without her mother’s sample? If not, could the test be done with her half-brother, without her mother, conclusively? Or with our sister, who shares both parents?
Identigene says
Hi Jessica,
Thank you for your comment! I am understanding your half-brother is unavailable for testing? If this is the case, we do offer tests that can include using first-degree relatives to test instead of the alleged father. The one that would be best for you depends on who is available to test, we have the Avuncular test (includes possible aunts or uncles of the child) or the Sibling Test (includes brothers or sisters to the child). Both tests run for $399 and include a 5 business day testing frame. Not testing with your niece’s mother, includes the risk of an inconclusive result. In this case, it would most likely mean there was not enough DNA provided to determine a concrete result. It would help to have the biological parents of your half-brother, or any siblings that are from the same parents as he is. The more people we include in the test that can help provide DNA your half-brother would have, the better the chance would be to receive a conclusive result. I hope this information helps. If you would like more details on the testing process or to order the sibling test, please call us at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Laura says
I was given up for adoption but have reunited with my birth family (all a good positive story). I have two older biological siblings and we would like to know if we have the same biological father.
I am certain that my biological sister would give me a swab. My biological brother probably would. My biological father is alive but probably wouldn’t willingly give a swab (but I could get hair or something else possibly). I MIGHT be able to get a swab from my biological mother…..but again could definitely get hair or something like that.
What are my best options for finding out if I share the same father with my biological siblings?
Thank you for your help!
Laura
Identigene says
Hi Laura,
We are happy to hear you were united with your biological family!
We do offer sibling tests at IDENTIGENE. We do highly recommend to have the mother tested if the biological father cannot or is unwilling. This will reduce your chances on an inconclusive result. It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
Sibling Test are $399 and can include up to 5 participants. Testing will typically take 5 full business days for results. I understand you are a known child of the two parents?
If so and your father chooses to give a sample, you can do a paternity test with him and your two siblings. This test will cost $129 plus the additional child for $89. The total cost in case your father provides a cheek swab is $218.
In the case your father does not provide a cheek sample, hair can be tested. With hair, we need at least 10 hairs with the roots intact. Have in mind we also require a signature consent to test the samples. Hair is considered to be a special specimen, this means there is a $400 price for testing the hair, and there is no guarantee the hair will provide enough DNA to test.
I hope this information is helpful. If you have more questions, please call our friendly client support at 1-888-404-GENE, Monday-Friday 9AM-8PM ET. Thank you for your comment!
Eliza says
My son’s father has been deceased 14yrs now. My son has a half sister, whom is 6months younger than her brother. They are the only children that the decease has. Been trying to get both approve for survivor benefits, but have a issue on how & where to begin with getting an DNA test done. Please give me some advice on where to start .
Thank you
Identigene says
Hi Eliza,
Thank you for your interest in Identigene. As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
I hope this information helps! Feel free to give us at call 1-888-404-4363, Monday-Friday 9AM-8PM ET with any further questions you may have and we will be more than happy to help you!
Jenny says
I was adopted when I was 4 and now 37. A year ago my supposed siblings found me. I have a brother and we have same Mother and Father and half Sister, same Mother but different Father. We have no idea where our Father is. The brother keeps giving me the run around on the testing but half sister is will to do the test with me and we have my Mother’s sister that is still here with us. Can you tell me what would be the best way to go about the testing to get the most accurate results. Thank You so much for your help
Identigene says
Hi Jenny,
Thank you for your interest in Identigene. As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
I hope this information helps! Feel free to give us at call 1-888-404-4363, Monday-Friday 9AM-8PM ET with any further questions you may have and we will be more than happy to help you!
Jenny says
Our Mother is deceased so no parents can be tested unfortunately. Would it be better to test my Mother’s sister instead of my half sister? Thank You
Identigene says
Hi Jenny,
With Family DNA testing, there is always a chance of an inconclusive result, meaning no solid “yes” or “no” answer could be reached. However, the chances for an inconclusive result get smaller as more participants (relatives) are included in the test. With family DNA testing, up to five participants can be included, depending on what relatives are available both your aunt and half sister may be required for testing. Please call our friendly client support so we can discuss the relatives available for testing, at that point we can go over options for testing. Reach us at 1-888-404-GENE, Monday-Friday 9AM-6PM ET. Thank you for your question!
meghan says
The father is wanting a dna test i dont want him to i dont want him involved . I do want to test to see if my brother and daughter have matching dna he is full brother
Identigene says
Hi Meghan,
Thank you for your patience! I am having some trouble understanding the situation you are in. It would be best to call us at 1-888-404-GENE, Monday-Friday 9AM-6PM ET to better assist your question and give you the best advice for your situation! Thank you for your comment!
Angie Pefferman says
Is it possible to do a test to find out dna of a child where the two alleged father’s are brother’s and both are deceased?
Identigene says
Hi Angie,
Unfortunately, it is not possible if both alleged fathers are related and deceased. When an alleged father is deceased, we would have siblings of the father or parents test in his place and reconstruct his DNA. When the other potential father is a brother, we would not be able to obtain a result for paternity. The grandparent test would confirm one of their sons as the potential father, but it would not get any more specific. If you have any more questions, please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM ET. Thank you for your patience and comment!
Anita Marshall says
Can u use dna from a cigarette but from the biologic father to test a child.
Identigene says
Hi Anita,
Thank you for your question! The preferred collection method for DNA samples industry wide is a cheek cell sample which is taken by swabbing the inside of the cheek in the mouth using a special swab that we provide in our kits. This is the easiest sample to work with and any other type of sample will be considered a special specimen. All special specimens require an additional fee of $400 to process and we cannot guarantee that we will be able to produce results with a special specimen. We also require a consent signature for all participants being tested. You will need to contact us at 888-404-4363 for an approval to send the specimen into us. All special specimens must be pre-approved before they will be accepted. I hope this answers your question. Feel free to call us at 888-404-4363, Monday-Friday 9AM-6PM ET with any further questions you may have and we will be more than happy to assist you!
Jess M says
Hi,
I recently found out that my father is dying, and when I went to speak to him he told me he was not my biological father. He would never consent to a DNA sample for me, but my sister would. We know for a fact that he is her biological father, and I was wondering what the accuracy would be between sisters? We share the same mother, so I am hoping to get some answers. Also I would be interested in prices and time frames, since we only have a limited amount of time before he passes.
Thank you
Identigene says
Hi Jess,
Thank you for your interest in Identigene. our condolences for you and your family during this time.
As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
The web link below, which refers mostly to paternity testing but applies to all testing services we provide, will give you more information as to why the biological mother is strongly recommended.
I hope this information helps. Feel free to give us a call 888-404-4363, 9AM-6PM ET with any further questions you may have and we will be more than happy to help you!
sanjeev patil says
whether DNA test can be done of two sons borne from two different wives of a same father, where the father is deceased. whether we can determine the paternity correctly…?
Identigene says
Hi Sanjeev,
Thank you for your interest in Identigene. As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
In your case, we would test to see if the boys are full siblings or half. I understand you know the outcome will be half siblings. It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
Please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM Eastern Time for any more questions or concerns. Thank you for your comment!
Shirley says
Could sister and brother take a DNA test to determine if they are from the same father. How much would it cost and where do we purchase this kit. Father is still alive and has cancer and unable to take DNA test.
Amanda says
Hi Shirley,
Thank you for your interest in Identigene. As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
Please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM Eastern Time for any more questions or concerns. Thank you for your comment!
martha friel says
hi my dad passed away and i have one sister and brother how doe i find out if hes mt real father my older half sister said he wasnt my real dad but dad told me i was his first born
Identigene says
Hi Martha,
Thank you for your interest in Identigene. As for your question, we can and do offer a sibling test, since everyone gets half of their DNA from the mother and the other from father. We can determine relationship of siblings to:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
It is always best to give us a call so that we can more effectively evaluate your situation before ordering a Sibling DNA Test.
The Sibling DNA test runs $399, typically take 5 days to complete and we cannot guarantee conclusive results. The test results for siblings will fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant) because there is a greater chance that the results will come back inconclusive without her. We can try to do the testing without her sample included whenever she is not available, but without her sample it will be highly likely that the results will be inconclusive.
Please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM Eastern Time for any more questions or concerns. Thank you for your comment!
Carmen says
Ok so I have a question hopefully u can follow…..so my IDENTICAL TWIN SISTER has a son that supposly fathered a baby girl now niether my sister nor my nephew want to do a paternity test to see if the baby is my nephews.. I no they can do a paternal paternity test from my sister cause shes his mother my question is because I am her identical twin can I do a paternity test and get accurate results ???
Identigene says
Hi Carmen,
I understand this child would be your sister’s grandchild? If so, the test needed would be a grandparent test. Since you and your sister share the same DNA, it is possible to test in her place. However, with a grandparent test, it is highly recommended to test with the child’s mother as well as any other first degree relatives. If the child is a minor, have in a mind a legal guardian will need to sign for the child to be tested. The grandparent test is $399 and can include up to five participants. I hope this information helps. If you have any more questions, please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM ET. Thank you for your comment!
Angela says
Hi my mother has just been told by the person that she has always believed to be her father that he is not her father but in fact her half brother and his father (the person who she thought was her grandfather) is actually her father. Is it possible for a dna test to be done to establish who her father is given the close biological relationship? My mum has two brothers and a sister all share the same mother (who has passed away) . my mothers father (or half brother if this statement is true) is still alive and is 96 years old so we are not sure if there is truth in what he is saying? Thank you in advance. Regards Angela.
Identigene says
Hi Angela,
IDENTIGENE offers family DNA testing to help with establishing paternity. I am having some trouble understanding if the father in question is available for testing. Our client support is more than happy to assist you in explaining how your testing can work out depending on which family members are available for testing. Even though there is a close family relationship, it is possible to test between family because even siblings have significant differences in their DNA. Unless they are identical twins, all family members have enough of these differences in DNA. Please call us at 1-888-404-GENE (43630 Monday-Friday 9AM-6PM ET. Thank you!
Mark says
I am looking to find out if my dad and his brother had the same father. There had been some question about my dad’s real father, but never found a way to check it. My father has passed away but my uncle is still alive. Can he and I take a test and know if my dad and he had the same father?
Thanks, Mark
Identigene says
Hi Mark,
We appreciate your patience! Identigene offers family relationship testing for situations that a participant in question is unable to test. Are there any other full or known brothers to your uncle of father? It helps to have more participants tested especially in situations when one participant cannot be tested. We highly recommend calling our friendly client support so we can discuss with you the options and best alternative for your circumstance. With DNA testing, each case is unique and we would like to assist you knowing the unique situation in detail. Please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM ET so we may further assist you. Thank you for your comment!
Cara DeLano says
Several years ago Telia (my best-friend)’s “half-brother” Hank claimed to be her father. Hank was trying to blackmail his step-mother for money claiming an affair when he was 16 and her mother (30) which resulted in her pregnancy with Telia. Afterward he recanted the story but her mother never affirmed or disaffirmed the veracity of his accusation.
Telia’s father (Max) is noted on the birth certificate to both Telia and Hank. Max and his first wife had Hank followed by five other children. There is also controversy that Hank’s uncle (Max’s brother) may actually be Hank’s father. Hank’s mom was pregnant but not sure which brother was his father. Max’s first wife disappeared after Kid Six and Max remarried. Telia’s Mom raised all 7 children so Telia is supposedly Max’s seventh child or Hank’s first.
Telia’s “Parents” are now deceased so their DNA is not really an option. Could her other half-siblings’ DNA exclude her step-brother as her sire? He refuses to cooperate.
Meisha says
Hello Cara,
We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I have provided a link to additional testing information. If you have any additional questions or concerns, or are interested in having us assist you with your DNA testing needs, please feel free to contact us 888-404-4363 and we will be happy to assist you.
http://dnatesting.com/how-the-paternity-test-kit-works/testing-without-the-father/
Amber says
There are two men that could possibly be my father. These two men are brothers. Neither men want to do a paternity test with me. They both have other children. One of the men child has agreed to do a test with me to determine if we have the same dad. I am just worried that since this child could be my cousin instead of half sibling if it will mess up the results?
Meisha says
We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. Cousins are too far of a relationship to really affect the testing and the results so testing as alleged siblings should provide you an answer that you are searching for.
You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Sibling test please feel free to contact us 888-404-4363 and we will be happy to assist you.
Ms. Simpson says
My brother and I share the same mother and possibly the same father. Is it possible for me to do a DNA test on my brother and myself to see if we have the same Father as well?
Meisha says
We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Sibling test please feel free to contact us 888-404-4363 and we will be happy to assist you.
Rita Kay Ellis says
My biological father is deceased my 5 half siblings want a dna test to determine if I am their biological sister. I didn’t know about them or my biological father until after my mom received a phone call several weeks after my biological father’s death and funeral. I believe my mom she kept his identity secret until his death he was a married man. What kind of test do I need, only two of the 5 half siblings want the test to prove to the other 3 half siblings I am their sister.
Meisha says
We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Sibling test please feel free to contact us 888-404-4363 and we will be happy to assist you.
Denise says
A woman claiming to be my older sister has made contact with me, stating she’d had DNA testing done with my father’s half brother and that my father is her father. Given the rather low percentage of shared DNA between half siblings, how likely is it that this woman might actually be related to me? Would a sibling test be able to determine without question that we are related?
Leslie Bryant says
Thank you for contacting Identigene. We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Sibling test please feel free to contact us 1-888-404-4363 Monday through Friday 9 a.m. to 6 p.m. E. T. and we will be happy to assist you.
rene says
yes i was wondering if you guys do sibling testing. and if so how would i go about doing it. i have used you guys before for my father and i and was pleased with results. they were shocking but i accepted. so i was wondering if i would have to buy two seprate kits and about how much it would cost?
Leslie Bryant says
Thank you for contacting Identigene. We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Sibling test please feel free to contact us 888-404-4363 Monday through Friday 9 a.m. to 6 p.m. E.T. and we will be happy to assist you.
Robbie says
My father died many years ago when he was about 30 yrs old. He never knew who is biloogical parents were – just a rumor that he was the result of an affair had by either the wife or husband of a particular family. I am now in contact with the grandchildren of this particular family. Can you tell me if dna testing would show if we shared enough common markers to indicate whether we had a grandparent in common
Leslie Bryant says
Thank you for contacting Identigene. Testing grandchildren would not give you a conclusive result. You would need to test with a alleged grandparent or alleged full aunt or uncle. Grandchildren are to far down the line to gain any accurate results. Feel free to contact us 1-888-404-4363 Monday through Friday 9 a.m. to 6 p.m. E.T. if you have any additional questions.
Vivienne says
Good morning,
I was told by my half- brother I was His daughter he has told me this we he been drinking and doing who knows what else. I would be asleep and he entered my room and tell me while I am asleep but he was so loud I heard every word he said, our dad had to console him and said your not her father.This happened two different times when I was growing up.My half brother did not live with us because he was much older. I noticed I have several photos of myself and my half brother together than my dad.Now I’m concerned, how do I take care of this? what test should I take and the cost. I see some in stores now does this work! Now I am older have kids do I leave this alone is what I like to do! Or do I resolve this wow!!!
Thank you,
Leslie Bryant says
Thank you for contacting Identigene. Your situation is a difficult one, and having the peace of mind one way or the other will allow you the closure it takes to move beyond speculation. We provide the most accurate testing available on the market today. As long as we receive samples from the correct people, your results will be accurate. We follow very strict guidelines in the lab, and are accredited with several different organizations. As far as which test would be the best test for you, and the costs associated with each type of test, I recommend giving customer service a call. Any test you complete with us will produce 100% accurate results. If you have any additional questions or concerns please feel free to contact us 1-888-404-4363 Monday through Friday 9 a.m. to 6 p.m. E.T. and we will be happy to assist you.
Janice says
If the father is deceased, can his mom be tested to see if a child is truly his?
Meisha says
Hello Janice,
Grandparent DNA testing with both paternal grandparents offers the “next best thing” to a direct paternity test. With both grandparents, DNA testing can conclusively determine whether a son of the alleged grandparents could possibly be the biological father of a child.
Results probabilities for DNA testing with both paternal grandparents are typically 100% (exclusion) or 99.9% (inclusion), but there is a chance that the results will be inconclusive without the biological mother. Grandparent DNA testing with only one paternal grandparent will produce results that fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. If the biological mother is not available to provide a sample for testing, there is a greater likelihood that the results will be either somewhat supported or inconclusive.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Grandparent test please feel free to contact us 888-404-4363 and we will be happy to assist you.
Kristy says
Last year my father (at least I’ve always believed he was) told me that he doesn’t believe I’m his daughter ( my mother cheated on him on more then one occasion while they were married) I don’t look anything like him but look identical to my mother. Im 35 now and kinda heart broken. I have 3 siblings (or at least I think they are) what would I need to do to find out the truth if neither parent will participate in a DNA test?
Meisha says
Hello Kristy,
We do offer a sibling test. Since everyone gets half of their DNA from the mother and half from father, we can determine the type of relationship for siblings:
– Full vs. Half
– Full vs. unrelated
– Half vs. unrelated
The Sibling DNA test is $399, and results are typically available in 5 business days; this does depend on how your samples react to testing. You can order this test directly from us over the phone and we will send kit supplies out to each person for collection. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
The test results for siblings will be one of four categories: strongly supported (conclusive), somewhat supported, inconclusive or not supported. We do strongly recommend including a sample from the biological mother (both mothers when relevant). There is a greater chance that the results will come back inconclusive without her.
I hope this information helps. If you have any additional questions or concerns, or are interested in a Sibling test please feel free to contact us 888-404-4363 and we will be happy to assist you.
Regina says
I’m just curious about how DNA testing works. If an alleged father has his half brother to take a home DNA test instead of taking the test himself, would the probability be 0%? My brothers has been plotting on ways to fake a DNA test. My older brother has a different father than my younger brother and I. I think that it’s wrong for him to do something like that, and I mentioned to the mother of his son that she needed to go about everything the legal way without telling on my brother. If my brother test my other brother would it still show that my nephew is related to us? I know he is my brothers son, he looks like our mom and my mom’s father. He is also left handed and has dimples like my brother (his father). I just don’t want to see the mother or child hurt because of my brother’s selfishness.
Meisha says
Thank you for your question, Regina.
If the half brother tested as the alleged father, and there is no possibility he is the father of the child in question, then the report would come back as 0%. With personal peace of mind tests the results are 100% accurate based on the samples and information sent to us to test with as we have no way of confirming who the samples were actually collected from. When a paternity test is done our lab only tests for paternity, not for relationship in general.
If there is a possibility that the correct person was not tested then we would also recommend a legal test. Legal DNA testing requires that all parties go to a designated collection facility so that a Chain of Custody can be established. Chain of Custody is the process used to maintain and document the chronological history of the samples (who has control of the samples at what time). At the collection facility, you will be asked to sign consent papers, designate an address where you want the results sent, and provide personal information such as photo identification. This process prevents anyone from being able to provide incorrect samples.
I hope this information helps. If you have any additional questions or concerns please feel free to contact us 888-404-4363 and we will be happy to assist you.
tim says
If you find out that you cousin could be be you balcones brother and you wanted to to a DNAtest to see but both his and your father are deceased. What could you do?
Meisha says
Good afternoon Tim,
I do apologize but I am not completely understanding your question. Are you wanting to find out if your cousin is actually your sibling but both fathers are deceased? Is that correct?
Lucy says
Found out I had a half brother out there in the wilderness that we did not know about who claims my father to be his biological father as well. My father is now deceased but my mother is still living. Decided to get a DNA done to make sure of the claim. The test included myself, my mother & my said half brother. Although the test came back 99.8% as a yes to him being my half brother, could there be a possibility as him being my uncle’s son instead of my father’s son? Long story short,…it has been said & rumored that his mother slept around with my uncle (who is my father’s brother) as well. This is why all this has left me uncertain of the results, being that my father is deceased & we couldn’t use him in the DNA testing, but used my mother in order to help with what makes up my DNA. Could there still be a possibility that the test may be wrong & he could be my uncle’s son instead of my father’s son? Please help put my mind at ease or help make me more knowledgeable of how all this works in a situation such as mine. thank you.
Identigene says
Good afternoon Lucy,
This would be a difficult question to answer without looking at your actual case and report. There would also be more questions we would need to ask you to assist us in providing you the correct information that you are seeking. If you can please call us at 888-404-4363, a DNA consultant will be able to better assist you in understanding your results. Thank you.
Pauline says
Can you help.
I have 2 brothers 76 & 71. I am only sister age 64.
Have discovered myself & younger of my 2 brothers are not our fathers children.
My blood test is A Poss. Both brothers are O.
A sister of our father is still alive….in her late 90’s.
What is the most accurate test for us to have, to establish if myself & middle brother (& perhaps eldest brother) are full or half siblings?
Identigene says
Hi, Pauline. Please contact one of our experts at 888-404-4363 to determine the type of testing that can help get the answers you’re looking for.
Marie says
My half brother and I share a father, but different mothers. We were recently contacted by a man who claims to be the son of our deceased father.
I know my brother and I could have a siblingship test done with this man, however, there is some speculation that he may be the son of one of our father’s cousins, who shares the same name as our deceased father.
My question is if this man is in fact NOT our brother, but the son of the cousin in question, how would that be shown in the results? I’m afraid the probability of ‘family relation’ being misconstrued as ‘sibling relation’.
Also, this man was recently released from prison and currently serving time in a state rehabilitation center. If he refuses to submit to the test, can we request a sample be pulled from the criminal DNA database to perform the test ourselves?
Identigene says
Hi, Marie. What you are asking for is family-reconstruction testing and a combination of several different DNA tests could help answer your questions. The ideal is for you, your brother and the man to all participate as well as all your mothers (if they are living). This will greatly strengthen results and lessen the chances of getting inconclusive results. As for requesting a DNA sample from a database, that is possible, but only with a court order. Hopefully your alleged relative will be willing to contribute his own samples. Be advised that with your father being deceased, siblingship and other possible tests can add up to hundreds of dollars. For more specifics or to arrange testing, please feel free to call one of our client support experts at 888-404-4363 during business hours. Thanks for the question!
keyona says
hello, as much as i hate to admit this i slept with two brothers in one night i then waited several years to inform the alleged fathers that they could be my daughters father i got brother A tested with out brother B we failed to inform the lab that alleged father that was tested is full brothers with brother B who was not tested and myself was not tested now that i look at my daughter she looks just like brother B and his daughter he has with another woman. my question is it possible that we may have received a fault positive should we get the test performed again with myself and both brothers tested? if brother B refuses to take the test (as he has been doing) could we use his other daughter he has with the other woman?
cengerman says
Hi, Keyona! Unless they are identical twins, full brothers still only share 20-25% of their DNA, and so you can be confident in your original test results that showed Brother A is the father. If the lab had suspected that half of your daughter’s DNA may be coming from another close family member, they would have said something at the time, the test results would have been inconclusive and they would have asked for more info from you.
Remember, your daughter and Brother B’s daughter share some DNA and therefore stand a good chance of looking like each other. It also wouldn’t be unusual for your daughter to look like Brother B, for the same reason. If you have any other questions, feel free to contact us during business hours at 888-404-4363 or participate in a live chat on our website.
Johanna says
My oldest sister (M) recently heard something from a family member that is making us wonder if our father had an affair with our mothers sister (C) and that possibly my oldest sister (M) was my father and my aunts (C) child. This is complicated because if this is true then both of our parents didn’t want us to know and my mother (H) raised her as her own. Her sister (C) died soon after my sister (M) was born. Not only do we think that our parents wouldn’t tell us the truth, but my mother (H) has Alzheimers now and we are at odds with our father and so there wouldn’t be a way to get either of them to do dna testing with us. The only option is to do a sibling test with my sister (M) and I. But I’m wondering if it would be able to distinguish anything very clearly since we know we have the same father and we either have the same mother (H) or our mothers are sisters. If our mothers are sisters wouldn’t their dna possibly match close enough that we couldn’t tell for sure if we are half-siblings or full-siblings?
cengerman says
Hi, Johanna. Here are your options, as we see them:
(1) I’m so sorry your mother has Alzheimer’s. That’s rough. Is it at all possible to swab H’s cheek for samples, despite her condition? It doesn’t hurt and it’s non-invasive. If H does not have the mental capacity to sign her own permission for testing, whoever has power of attorney in her behalf can. If we have your samples along with M’s and H’s, then we can do a straightforward maternity test to see if she’s the mother of both of you or just one. That test is just $89 and will show conclusive results. Just be sure to note on your paperwork that H’s sister C is also a possible mother.
(2) If the above isn’t possible, then we can do a half-sibling vs. full-sibling test using samples from just you and M. The results will show a percentage of probability that you are full or half relations and so it’s not as definitive as the maternity test. There’s also a greater chance of getting inconclusive results. This test is $399.
I hope you find the answers you’re looking for: peace of mind is a wonderful thing. You are more than welcome to contact our Client Support Team at 888-404-4363 during business hours. They are experts who can answer all your questions and arrange for testing should you decide to do it. Wishing you all the best!
keyona says
HELLO I READ YOUR LAST REPLY. I HAVE NOW HAD BROTHER B TESTED AND HE HAS CAME BACK THE FATHER JUST LIKE BROTHER A DID WHEN HE WAS TESTED WITHOUT BROTHER B AGAIN I DID IT WITHOUT BROTHER A AND WE DIDINT INFORM THE LAB ONCE AGAIN THAT BROTHER B IS RELATED TO BROTHER A WE USE THE SAME LAB AND THEY INFORMED ME THEY ARE DOING WHATS CALLED A STANDARD TEST AND ONLY TESTING 15 MARKERS AND WITHOUT MYSELF OR THE 2 BROTHERS BEING TESTED AT THE SAME TIME THE RESULTS WILL NOT BE CONCLUSIVE BECAUSE THEY HAVE NOTHING TO COMPARE THE DNA SAMPLE OF MY DAUGHTER AND THE ONE FULL BROTHER BEING TESTED THEY CANT TELL ME IF SOME OF HER MARKERS ARE COMING FROM ME BROTHER A OR BROTHER B. WHY ARE THE RESULT COMING BACK AS BOTH ARE THE FATHER IS IT THE WAY THE TEST IS BEING DONE(TESTING 1 FULL BROTHER AT A TIME AND WITHOUT TESTING ME) OR SHOULD I JUST GO SOME WHERE ELSE FOR MY DNA TEST?
cengerman says
Hi, Keyona. I suggest at this point that you speak personally with one of our experts in Client Support to discuss what your options are, whether you choose our lab or go to another. The number is 888-404-4363 and they can be reached during business hours. Thanks!
Scott says
My parents are both deceased I have a half sister through my mom and a half sister and brother from my father. My parents married later but his name was never placed on my birth certificate. My father was the yongest child and only had half siblings. My mother has a sister. I am wondering is it possible to determine paternity through my siblings.
IDENTIGENE says
Hi, Scott! We can definitely do a half-sibling test. What this would show is whether or not you are half-siblings with your brother and sister or whether you’re unrelated. With only half-siblings instead of full-siblings, there is a greater than normal chance that results could come back “inconclusive,” but it can be done. In addition to you, we would for sure want to test the half-sister on your mother’s side (to help determine which DNA came from Mom). We’d also want to test both half-siblings on your dad’s side to pull as much DNA info from his side of the family as possible. If you are interested in doing this, please contact our Client Support Center at 888-404-4363, M-F from 9 AM to 5:30 PM Eastern Time and one of our experts can help you set up what you need for testing and give you pricing information. All the best!
Rene says
So my mom slept with my belived to be father and his father (my grandfather) my father is now passed away. But he had a child with another girl. How could I tell who my real father is my testing my half sister or my grandfather?
IDENTIGENE says
Hi, Rene. We can test for a biological relationship either way. We can answer:
(1) Do you have a biological relationship to your half-sister, and/or
(2) Is your grandfather your biological father.
The most economical one would be to first just do just a straight paternity test with you and your grandfather. What you must do, however, is let the lab know on your paperwork that the other possible father is your grandfather’s son. This will affect how they test. If the test comes back with a 99% or higher probability that your grandfather is actually your father, then you know your answer.
I highly recommend you contact an expert in our Client Support Center at 888-404-4363 during business hours and they can give you more information about your options as well as pricing. Should you also decide to test, they can help set it up for you. Good luck!
Paul says
While doing ancestry research, it was discovered that my wife’s mother and her husband were in different countries when my wife was conceived. We suspect his brother may be her actual father.
Is it possible to do a test on my wife and her sister to see if they have the same father, as opposed to different fathers who are brothers? The mother and her husband are deceased, and it will be very difficult to get a test done on the brother. Thanks!
IDENTIGENE says
Hi there, Paul.
We can definitely test your wife and her sister to determine if they are half-siblings or full siblings. If they are half-siblings, it would show they do not have the same father. If they are full siblings, then they have the same father. What this type of testing would not show is whether or not your wife’s uncle is actually her biological father. For that answer, your wife would need to test with her uncle (potential father). Hope this helps! If your wife and her sister decide they want to do the testing, it runs about $399 and can be set up by calling our Client Support Center at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern). Good luck to you!
Janet says
Hello, if my father had a affair with his sister. And if they had a child, both of them have passed. Would you be able to tell by sibling DNA if we are half sister’s.
IDENTIGENE says
Hi, Janet. To be clear, are you asking about if your father had an incestuous affair with his own sister or an affair with your mom’s sister?
Dan says
Hi folks,
Here’s one for you.
Robert and Angela are married. They have 2 daughters; Louise and Cynthia. Louise is my mom. Angela divorced Robert and married Barry. They had 2 children; Ida and Leo. Barry had relations with Louise and fathered me. Are Ida and Leo my sister and brother? Is there a DNA test to prove it when the only 2 people left alive are Leo and me?
IDENTIGENE says
Hi, Dan! From the scenario you gave, it appears Leo is your half-brother. We can do a Y- chromosome test for you and Leo to see if you are related. It’s not a definitive paternity test, since we don’t have your father’s DNA, but it’s probably enough evidence to answer your question. The price for this test is $279. I highly recommend you contact our Client Support Center directly at 888-404-4363 to get your other questions answered. They can also arrange the test, should you decide to go ahead with it. Hope this helps!
Pamela says
If 2 potential father’s are cousins, can you easily find out who the biological father is?
IDENTIGENE says
Hi, Pamela. There are enough differences in the DNA between cousins that it will be fine. Even if they were brothers, our scientists would be able to distinguish one potential father from the other (unless they are identical twins). When submitting samples for both potential fathers, it should be noted on the paperwork that they have a cousin relationship so that the lab is alerted.
Pamela says
Could it not be figured out with just one of the potential father’s DNA? My dad doesn’t know and this late in life I would never want him to feel that pain.
IDENTIGENE says
Yes, you can do it with just one of the potential fathers. But you should still let the lab know, in case they need that information. Would your mother be willing to contribute her DNA? That always strengthens results. Good luck!
Pamela says
Yes my mom has already agreed to it. Thank you, for everything!
IDENTIGENE says
No problem, Pamela. All the best!
Sheila says
Hello, my name is Sheila and I have a question.
My alleged father is deceased and I would like to know what family member(s) would be the best match to test.
The alleged father’s mother (grandmother)
The alleged father’s brother they share the same mother and father as the alleged father
The alleged father’s son
And if I can locate the “blood card” from the coroner would that be able to be tested?
IDENTIGENE says
Hi, Sheila. The best case scenario would be to do a direct paternity test using your cheek samples and the alleged father’s blood card. This would give you the most conclusive result, but the lab fee for testing (since it involves extraction from a non-standard sample) is $400. The next best option would be to do a half vs full sibling test between you and the alleged father’s son. Details for both these options are too lengthy to describe in detail here. It’s best for you to call our Client Support Center at 888-404-4363 and they’ll be happy to review your options and answer your questions. Good luck!
Jeff says
I wanted know is it possible an oldest brother do DNA test to his youngest brother to show that they are father and son, they have same mother and father?
IDENTIGENE says
Hi, Jeff. Can you clarify what exactly is the question you’re trying to answer?
If the older brother and younger brother are full brothers with the same biological parents?
Or do you think the oldest brother might be the biological father to the youngest brother?
H Black says
Hello, Recently it was hinted that my father’s parents were sister and brother. They are all dead now but my father had a half brother (same mother) that is still alive. Would it be possible to find out if my father’s parents were brother and sister using his half-brother’s and my dna. I’m a woman.
Thank you.
H Black
IDENTIGENE says
Hi! It is possible to do different types of family-reconstruction testing, but there is a high chance that results would come back inconclusive. This type of testing starts at $399. Please call one of our experts directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) to see what your options are, and then you can decide if you want to proceed or not. Hope this helps!
Oona says
My mother tells me that the man I thought was my half-brother is actually my biological father. (The man she says is my father is the son of my dad’s first wife, so he is closely related to the dad who raised me.) Both half-brother and his father (who raised me as his own) are now deceased. How accurate would a siblingship test be if I asked one of my half-brother’s sons to do a test with me?
IDENTIGENE says
Hi, Oona. Because your question really is, “Is my half-brother my father?”, then a straight paternity test is advisable. Is your mother willing to participate in a paternity test? Having her DNA samples would help confirm results. Hope this helps! If you have other questions, feel free to contact us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) and a representative will be happy to help.
Marie says
Can your test be used to test brother to brother to see if they have the same dad?
IDENTIGENE says
Hi, Marie. Yes, we can do a half-sibling versus a full sibling test. The lab fee is $399. Is it possible for the mother to submit her samples as well? This helps get the most conclusive results. Hope this helps!
H Black says
Thank you, I will give your answer some thought.
Oona says
How can I get a paternity test if both possible fathers are dead? (See my query above)
IDENTIGENE says
I’m sorry, Oona. I totally missed that your half-brother is also deceased. It would be extremely difficult to get conclusive results in your situation, as you describe it. But you are most welcome to call the experts in Client Support at 888-404-4363 to double-check. Then you can discuss with them any other relatives besides your nephew who might be willing to test and if that would even help. But your situation is complex enough it would be really best if you discuss it on the phone with us. Sorry I couldn’t be more help and good luck!
Gina says
Hi I have three kids , two daugters with my ex and one son with my current partner I need to know if they share same father ,, I have done full sibling test between my younger daughter and son which says ” result obtained are not supportive of the relationship test … probability of full sibling is 5.88% wat does this mean .. and if I do test between older daughter and my son will the result will be different
IDENTIGENE says
Hi, Gina. It means that the probability of those two children being full siblings is only 5.88% out of 100%, which would indicate they are not most likely not full siblings. For help in analyzing your results, it’s best to call us directly at 888-404-4363.
Gina says
Thank you for explaining x
IDENTIGENE says
You bet. All the best to you!
kate says
Hello! Is it possible to have false positive result if alleged fathers are half siblings? (If only one alleged father + child were tested). And the probability was 99,99998063 %.
IDENTIGENE says
Hi, Kate. When the probability is that high, we consider the man tested to be the biological father. If the man tested were the uncle instead of the father, results would have shown something amiss and the lab would have asked questions. You can be confident in these results.
Tammy says
My brother has two boys that look alike And look just like him then he had a babyGirl that look nothing like his sons nor him , is it possible that I can swab one of his sons and the babyGirl to get some type of closure for my family ?
IDENTIGENE says
Hi, Tammy! Only legal guardians of a child can approve DNA testing for them. Looks alone can never be used as a gauge of paternity. It is not unusual for a child with the same parents to look very different from her parents and/or her siblings. How a person looks depends on the specific combination of genetics they happened to inherit.
Jamie says
I would like to know what steps I should take to find out if my father is the father of my friend. My father was seeing her mother and it’s possible he is her father, however my father passed away when I was 3. How can I find out if she is my half sister? Thanks
IDENTIGENE says
Hi, Jamie. We can do a half-sibling vs. unrelated test. It costs $399. It is optimal if your mother can also submit DNA samples. Feel free to call us at 888-404-4363 and we can explain it further and set up the test if you decide you want it.
barbara says
Hi for the last few years i have been bothered with who my actual father is. The man i know to be my birth father may or may not be. I have four other siblings from mother side, and three from father side. I can’t ask my mom because she passed away almost two years ago. i was wondering if i could use one of my siblings from mother side, or i have to use it from my father side. I would use my father but he is not around, please help me i am going crazy out of my mind.
IDENTIGENE says
Hi, Barbara. I’m sorry you’re so distressed, but totally understand. If your father is still living, your best chance of getting a definitive result is absolutely to test with him, if he’s willing. If not, we can do a half-siblingship test with any of your father’s other known children (not your mother’s) to see if you share a biological relationship with them. There is a much higher chance of an inconclusive result with this type of test and it’s substantially more expensive than a straight paternity test ($399 vs. just $89). I suggest you call us at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) to get more details and they can set up the test for you should you decide to do it. Hope this helps!
Melissa says
My brothers girlfriend is currently pregnant. She is about as far along as the time they have been together (give or take a couple of weeks) and they were both one and off with other people at the same time. Obviously our concern is if the baby is actually my brothers. He has already stated that he believes his girlfriend 100%; friends and family are all a bit skeptical considering the timing of this and the circumstances of the whole situation. If the baby is his, we will be thrilled but we really would like to have some peace of mind. He and I have the same parents. How accurate would a test be if I were to get tested with the baby? And how soon after birth can we test the baby?
IDENTIGENE says
Hi, Melissa. So is your brother not at all willing to do a paternity test? Because that is definitely the way to go. The lab fee is only $89 for a straight paternity test. If he’s not willing, we can do what’s called an avuncular test, where we test the aunt’s samples (yours) with the baby’s to determine if there’s a biological relationship. At $399 it’s significantly more expensive and there is a chance of getting an inconclusive result. The reason it costs more is because there is significantly more analysis involved.
I just gave you a high, birds-eye view. I recommend giving the experts at our Client Support Center a call at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) and they can give you all the details. Hope this helps, and good luck!
Becky Ann Morris says
Hi,
If you try to find the paternity of a man and you test the brother not knowing it is the brother, would it be interpret as the father? Reason I’m asking is that this was done some years ago where they we’re told that the sample of the ‘brother’ was the father and asked them if it was the father and then got a yes? (The brothers had different mum’s) But they were really brothers and not father and son. How could this take place?
Would really appreciate a reply. It’s over five years ago since they were tested now.
IDENTIGENE says
Hi, Becky. Let me see if I understand the question correctly. Are you saying that the brother of the possible father was shown to be the “son?”
Terry says
Can I take DNA for my brother Even though my brother and father gone. Is it possible I can do DNA with one of his slibings?…helpppp
IDENTIGENE says
Hi, Terry. What question exactly are you trying to answer? And was your brother your half-brother or full brother?
Bobbie says
I found my half sister 16 years ago, we share the same dad. My mom insists that she is not my sister. Our dad died years ago. Is there a test that would prove once and for all that we are indeed sisters?
IDENTIGENE says
Hi, Bobbie. We can do a half-sibling vs. unrelated test for you and your sister. Optimally, we would also need samples from both mothers. If that’s not possible, we cannot give any kind of guarantee of getting conclusive results. Does your dad have a full brother/sister or parent(s) still living? That would help too. Please give us a call at 888-404-4363 and one of our experts can determine what would work best for you and give you more details. The price for the test is $399.
Cynthia says
So then to see if my ex husband is indeed my last child’s father of not, I don’t have to fight with him about doing a dna test. I can test my children to see if they share the same father?
IDENTIGENE says
Hi, Cynthia! You can do a half-sibling vs. full sibling DNA test. It’s $399 (vs. $89 for a straight paternity test). The higher cost is due to the more extensive analysis required to get results. I suggest you call us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern Time) to discuss your best options with one of our experts.
kumar sharma says
hai
can it be identified when mothers are different and single father when both parents are not alive
IDENTIGENE says
Hi, Kumar. We can do a siblingship test, but without the participation of specific family members, the chances of getting inconclusive results are much higher. Please contact us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) to see what your options are.
Jeverley Pickup says
Hi there i have a half sister and have just found i have a half brother too is there any way i can find out if we are actually half brothers and sisters? same dad different mothers, unfortunaltely dad has now passed away.. thank you
IDENTIGENE says
Hi, Jeverley. Are the mothers still living? In order to get any kind of conclusive results, we would need DNA samples from you three possible half-siblings plus your mothers. The price is $399 for this test. If you’re interested, you are welcome to contact us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern Time). One of our experts can assess the testing possibilities and help answer your questions. Thanks!
Uncertain Need Help says
Hi, My mom had a few affairs. She has 7 children. We are sure that only the first two (Male & Female) are from her husband. Four of the 7 children were not her husbands. I am the 7th child. I have asked her who my father is and she said your dad is your father. (The man I consider my Dad is her husband-the father of the first two) Both my parents and oldest sister have passed away. The only sibling I have left is my oldest brother which is my Moms first child. I do have my oldest sisters two kids alive one male and female. Is there a DNA test I can take to find out if the man I’ve always called Dad is my biological father? If so who would I have to test? and where can I purchase the tests? Please help! Thanks.
IDENTIGENE says
Hi there! I suggest you call us directly to set up the test (if you decide to do it), since our kit on store shelves is for straightforward paternity testing. Yours will require more participants and much more analysis. Optimally, it would be best if we could have DNA samples from:
You
Your brother
Your niece and nephew
Any known siblings of your mother and father who are still alive
The pricing for this type of test starts at $399, and please be aware that there is a relatively high chance for an inconclusive result. Our phone number is 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern Time).
Catherine says
Hi! If two alleged fathers are half siblings and only one was tested for paternity, can you tell for sure which one is the biological father?
Catherine says
And the probability was 99,9999.
Admin says
Hi, Catherine. It’s essential that customers tell the lab ahead of time if two possible fathers are biologically related so that additional testing can be conducted, if deemed necessary. Was there a notation made at the bottom of your report about the possibility of there being another alleged father who is closely related? Without seeing your actual report, I don’t want to draw any conclusions. I suggest you contact the company you tested with to discuss your results with them. Thanks!
Catherine says
Ok, thanks. I was hoping that high probability (99,9999) would confirm who the real father is.
Admin says
It should, Catherine, but again…without seeing the results report I hesitate to speak in absolutes. Give the lab you tested with a call!
Catherine says
Hi again! I contacted the company and they said that half brother should give more mismatches. Is that correct? No additional test was conducted.
Admin says
Yes, a half brother should give more mismatches.
Sonia Nunez says
I want to find out who my biological father is. I always questioned that the man who I was told was my father really wasn’t. I have three older siblings(two brothers and one sister) that supposedly have the same father and I have one additional brother that is a year older than I am and he has a different father. I checked into getting tested a number of years ago when the test were really expensive. I was told I should test with my sister to see if we share the same father due to father in question being deceased. All five of us share the same mother. As a note, the father in question does have children born to other mothers.
Is it possible to get a conclusive result?
Admin says
Hi, Sonia! Is your mother living and willing to test? That would be helpful. As a general rule, the more 1st degree relatives who are willing to test, the more likely you are to get conclusive results. Keep in mind that since this isn’t a straight child-father paternity test, there is much more extensive analysis required, so lab fees start at $399. I suggest you give one of our experts a call at 888-404-4363. The consultation is free and they will be able to thoroughly go over your options with you.
Sonia says
.Yes my mother is available to test. I will call and speak with one of the experts.
Admin says
OK. Best of luck, Sonia!
Rena says
I took a DnA test w/alleged father and probability of paternity was 0% ….
But rumors say we might share the same dad and most of our alleles match ???
Is it possible we share the same dad
Admin says
Yes, that would be possible. All the 0% told you is that the man you tested with isn’t your biological father. That doesn’t mean you are completely unrelated. Your best option would be for each of you to test with the untested alleged dad, if he’s available and willing to test.
Tiffany says
I never met my father, only heard about him and I know I have multiple half siblings. I have done everything I can think of to find him or my halfies. No luck!
I recently started communicating with a guy on social media with the same last name as my maiden name. Ironically he was born in the last known place my father was. Sadly ours stories are nearly identical. He never knew his dad either. Plus, we look a lot alike! Unfortunately his mother never told him anything about his biological father so we aren’t able to match any info.
Is there a test we can do, just the 2 of us to find out if we have the same elusive dad?
Admin says
Hi, Tiffany. If you were both males, it would be much easier to test, since a male’s Y chromosome is passed down from generation to generation. Seeing as you’re a female and male, a half-sibling vs. unrelated DNA test could be performed. However, unless both your biological mothers are willing to also participate, the chances of your getting an inconclusive result is very high. This test costs $399. If you want to discuss your situation with an expert, feel free to call us directly at 888-404-4363.
Kate says
My partner died and now someone’s come forward to say he has a child, a DNA test was done with my deceased partners sister and the child, which she says came back at 83%. Is it possible that the child’s father could be my partners half brothers, they all have the same dad including the sister who did the DNA, no one will even consider this option
Kate says
Sorry I forgot to say I have a son that I wanted to test with to see if there siblings would this give a definite answer
Admin says
I didn’t see this before I replied to your other post, sorry. I’m assuming your son is with your deceased partner? Yes, that would be a much better test to do. I still highly recommend that the other child’s mother test too.
Admin says
Hi, Kate. When testing a child with an aunt or uncle, it’s advisable to also have the child’s mother participate to get more conclusive results. You didn’t mention if she was tested too or not. 83% probability of relationship is not considered conclusive. As to the half-brothers possibly being the father, if the lab suspected as much, they most likely would have made a note of it on the results report. I suggest retesting with the mother, if possible, if she was not included the first time.
Heather Galvin says
Is there a way to determine if your “sister” is actually your mother. if both “parents” are deceased. I believe I may have been raised by my grandparents.. as my “parents” and my “sister” is actually my “mother”. My “sister” is terminally ill so I wanted to see if there is a way to determine whether or not she is my mother or my sister. Some extended family members insist on telling me “the truth” while others say its “a family secret” or “otherwise not true”
IDENTIGENE says
Hi, Heather. If your “sister” is willing to contribute her DNA, you can just do a straight maternity test. If she is indeed your mother, then your genetic profiles will have a match at every location. This is not true of sisters. If you decide to test, you must do this important step: Be sure to tell the lab that, even though you’re doing a maternity test, there is a good possibility that she is your sister. This piece of information is essential to the analysis of your testing. If you have further questions or to arrange the test, give us a call at 888-404-4363.
Babs says
My Mother A had relations with her father-in-law, B.
My Mother’s husband D is B’s son.They are deceased.
Mother is unwilling to be tested.
B’s other son, C, and daughter R, share the same parents as D.
Can it be determined if C and R are my half-siblings or my Uncle and Aunt?
Or will half-sibling or uncle/aunt only prove the same degree of relationship?
IDENTIGENE says
Hi, Babs. This is a complicated scenario, so I consulted with our lab director. Even if your mother were willing to test, there is a strong probability of getting inconclusive results for both an uncle/aunt relationship and a half-sibling relationship due to the amount of shared genetic material involved. You didn’t mention if B’s wife is still alive, but the information I’ve given you is based on the assumption that she is deceased.
don says
Hi, my father and mother are both dead, there is strong evidence that my father’s ,father was actually my father making me my fathers brother ? anyway i can find out.
Identigene says
Hi, Don. Does your father (not your grandfather) have any siblings living who would be willing to test. Do you have any siblings that you know for sure belong to both your parents? That’s the place to start.
Moses Oluwatusin says
Dear Sir/Madam,
I write to enquire if it is possible that DNA testing can prove that I am related biologically to my orphaned nephew whom I intend to sponsor for immigration to Canada under other family class. His (my orphaned nephew)’s late father and me were born of the same parents. But there is no available document to support this. And my parents are late.
I want a DNA testing that can proof through me and the orphaned nephew (my late brother’s son) that I and his late father (my late senior brother) are related by birth (from the same parents). I am based in Toronto, Ontario and my orphaned nephew is based in Lagos, Nigeria.
I eagerly await your response.
Moses Oluwatusin
Identigene says
Hi, Moses. I suggest you contact Identigene’s parent company, DDC, to find out what your options are since you are in Canada. Here is a link to the website, with contact information too. Good luck! https://dnacenter.com/immigration-dna-testing/
Roxanne says
I was adopted and recently I had a sibling find me. We are in different states. How do we take a DNA and compare that living so far away from each other?
Identigene says
Hi, Roxanne. Just give us a call directly at 888-404-4363 and we’ll take care of making sure DNA collection supplies are distributed to different states and ensuring the samples are reunited for testing here at our lab.
Charlene Whitfield says
My little sister and I just found out we may have a half sister, “Suzy”, who is six months older than myself. My question is, can one of us be tested with “Suzy’s” DNA to determine if we share a father? Are there legal documents to protect my parents estate?
Identigene says
Hi, Charlene. We do siblingship DNA tests, yes. It’s important to know that in order to get the most conclusive results, it’s optimal if one or both mothers contribute their DNA too, if at all possible. Please contact us directly at 800-344-9583 to discuss your options and pricing with one of our relationship-testing specialists. As for legal documents to protect your parents’ estate, you’ll need to contact an attorney to see what you can do. Good luck!
Mo says
My half brother had sex with my girlfriend around the same time she got pregnant with my daughter, so i did a DNA test without including the mother and my half brother the result came back 99.90%, i wasn’t satisfied with the result, so i did it again this time i included the mother and not my half brother the result came back 99.99%, is there a chance that my half brother could be my daughter’s father?
Identigene says
Hi, Mo. Since you included the mother, you can be confident the child is yours. Did you not notify the lab that the other possible father is your half-brother? That’s always a good idea. That could have made a difference in the analysis, although your probability of paternity is so high that in this case it probably didn’t. For your own peace of mind, you may want to have your half-brother test too so this doesn’t keep nagging at you.
Joann Laqua says
My aunt and my mother were with same man… can my sister and I take DNA test to see if we are cousins /and half sister all adults are dead know???
Identigene says
Hi, Joann. I highly recommend that you call our parent company DDC and speak with one of our experts about what your testing-options are. That number is 800-681-7162. It’s important to keep in mind that, with all adults having passed, it increases the likelihood of getting test results that are inconclusive.
Alice says
My mother and the man I always thought was my dad are now deceased. Recently there is reason to believe that he might not be my biological father. Is there any way I can find out if this man I always thought was my Dad was my biological father or if someone else was?
Identigene says
Hi, Alice. Does your father have any relatives living, like a sister or brother? Do you question your own paternity or that of your own siblings too? There are a lot of variables that affect my answer to your question. You may want to call us directly at 800-681-7162 to see what your options are.
alice says
My father has no living relatives, such as brothers or sisters. My question is about my own paternity and not my siblings. I have recently taken a DNA test and so has one of my sisters. We are awaiting results. I was wondering if the DNA we submitted would tell us if we have the same father. And thank you so much for your earlier reply.
Identigene says
I see. Since full-blood sisters share 50% of their DNA, your DNA may show that you are related or it may not. Usually, ancestry testing can indicate a possible relationship, but you need the DNA to be analyzed by a genetic scientist to confirm the relationship.
Shari says
I was adopted when I was 3 days old. When I was 17 I found out that my biological mother was my “Aunt”, my adopted mother’s sister. I always thought she was my Aunt and her children were my cousins. Now I know that my “cousins” are really my 1/2 sisters, as we all three have different fathers. My adopted sister is really my first cousin! Of the 4 children my biological mother had, I am the only one that she put up for adoption. To this day she claims that she has absolutely “no idea” who my biological father is. I am now 54 and the only health history I have is my mother’s side. I have lately been more curious and wanting to find out who my biological father is. My mother(s) come from a family of 10 girls, 3 boys. I have LOTS of first cousins. There is one cousin in particular that I look very much like. In fact, over the years people have asked if we were twins. Our family is Hispanic with typical features, dark hair, dark eyes. I have very blue eyes. There is only one other “cousin” that has blue eyes. The rest have brown. The one cousin that looks like me her father had bright blue eyes. This man would be my “Uncle”. I have a strong feeling this man is my father. He has passed away as has his wife, my Aunt and my mom(s) sister. My cousin, his daughter, is willing to do a DNA test with me. Would this give the result to find out if my Uncle is my father with just my DNA and my cousin’s DNA?
I have a very strong suspicion (as do others) that
Identigene says
Hi, Shari. Keep in mind you only share 12.5% of your DNA with a first cousin, and so without additional participants, it would be difficult to obtain conclusive results. I caution you about putting too much weight on eye color as proof of relationship. Because your case is a complicated one, I suggest you contact the experts at our parent company, DDC, to see what your best testing options are. It would be difficult to do so here in writing. The number is 800-681-7162. Good luck!
Terrie says
My alleged father passed away a little over a year ago. He has no FULL blood siblings within this marriage or any of his mothers marriages. When his father remarried, his father had other children with his new wife. Can these half siblings be tested to prove that he is indeed my father? Also, just throwing this out there, if these people, my alleged Aunts, refusse to give a sample can I obtain a court order for them to give a sample?
Thank you for your time.
Identigene says
Hi, Terrie. You share so little DNA with these half-aunts and uncles that you’d be throwing your money away. Does your father have any other known children you could test with? Also, did this new marriage of your alleged grandfather produce any boys or just girls? Your commend would imply that you only have half-aunts and not half-uncles.
Nikita says
Me and my sister share the same mother but I am not sure if we share the same father , would there be a possible way to find out if I have the same dad as my sister through my sisters DNA? As he dead , so I cant get Dna from him, nor do I know who his family is. And I’m not sure if my sister know his family as well.
Identigene says
Hi, Nikita. Yes, we can do a half-sibling vs. full-sibling test. The best way to up the chances of getting conclusive results is if your mother can contribute her DNA to the test as well. You’re welcome to call for a free consultation and help determine your best options: 800-681-7162.
patty says
Could DNA result be given to one sister and DNA can tell her who her sibbling is? Different mother but same father.
Identigene says
Hi, Patty. Yes, our parent company DDC does sibling testing. The conclusiveness of results depends on who is available and willing to participate in the test. Rather than try to figure out your situation here through writing back and forth, it would probably be easiest for you to call u and speak with a specialist directly: 800-681-7162 (M-F, 8:30 am to 5:30 pm Eastern).
Casey says
Both my parents have passed away now.. but I’m hearing a lot about how my dad might not b my dad.. I have 1 full brother with both parents and I have 1 half brother with dif mom but same dad (I think he’s my dad) is there a test me and half brother can take to c if we r related and then I’ll know if my dad is my dad?
Identigene says
Yes, our parent company DNA Diagnostics Center can do that test, but it would be better if you could test with your full brother. I suggest you contact us directly at 800-681-7162 to see what your best options are.