When asked about including the mother in DNA paternity testing, many people respond by saying something like, “But I already know I’m the mother. Why would I test?”
Having the mother submit her samples along with the child and possible father can actually help HomeDNA Paternity answer your paternity questions with more certainty, which is why we include the mother’s participation is included in the lab fee.
Strengthening DNA Paternity Testing Results
Testing the biological mother’s DNA increases the chance of a conclusive result for any DNA test-including DNA tests for paternity, siblings, or grandparents. That’s why the mother is strongly encouraged to participate in any DNA relationship test (excluding maternity testing) at no additional cost. In fact, each kit includes collection materials for the child, possible father, and mother. In most cases, the mother’s DNA is not needed to strengthen results, but sometimes it is. If it turns out her DNA is required and it was not submitted, it will delay results, which is an inconvenience and extra stress no one wants. So if it’s possible to submit the mother’s DNA, why not? Here are the details on why it can be important.
How the Mother Strengthens DNA Paternity Testing Results
A high-quality paternity test checks 2o Genetic Systems (sometimes called markers or locations), and more, if necessary, looking for matches between the possible father and child. If he is to be considered the biological father, each location must show a match (with the exception of instances of a mismatch due to naturally-occurring mutations).
Each match is assigned a number (Paternity Index) which shows just how strong the match is: the higher the number, the stronger the match. All of the indexes are multiplied together to produce the Combined Paternity Index (CPI). If he is the biological father, the CPI must be at least 100 (at least 200 for immigration cases).
Paternity testing with just a father and a child usually produces a high CPI and a very high Probability of Paternity (usually 99.99% or greater if he is the father). However, sometimes the matches between father and child aren’t strong enough for conclusive results. In these rare cases, HomeDNA Paternity asks for the DNA samples of the biological mother. With the mother’s information to go along with the possible father’s, DNA paternity testing almost always provides a strong, conclusive result. Even when results are already conclusive, including the mother strengthens the result.
A Paternity Test Example
Consider the following paternity test example:
In this case, the probability of paternity is only 98.99% (multiplying together all the relationship index numbers). The result is inconclusive because it must be greater than 99%-even though the father and child match at each location.
Now, let’s add the biological mother’s sample to the DNA paternity test:
The probability of paternity increases to 99.90%-a conclusive result showing that the father really is the biological father of the child.
Why does Including the Mother Help?
In the first example, all of the locations match, but we don’t know which of the child’s DNA markers comes from his mother and which comes from his father. Since the mother wasn’t tested, each relationship index is lower than it could be.
By testing the child’s mother, we see which of the child’s markers must have come from the father and this makes each match stronger. In the second table, the Paternity Index numbers are higher and the result is now conclusive because the Probability of Paternity is higher than 99%.
The Mother Won’t Agree to Participate. Is it Still OK to Test?
Yes, absolutely. Although the mother’s participation can strengthen results, her DNA is not usually needed in order to obtain conclusive results. But if she can provide her DNA and is willing to do so, that’s ideal…just in case!And remember: Including the biological mother’s DNA is not just for straight DNA testing. She should be included in any DNA test, even grandparent DNA tests or sibling DNA testing, in order to strengthen the DNA test results.
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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 8:30 AM to 5:30 PM Eastern Time. Our friendly, expert representatives are ready and happy to help. Get answers anytime by visiting our Help Center.
zay says
I tested the alleged father and my twins and it said that he was excluded from being their father it showed 0% would it had made a difference if i tested myself as well
Identigene says
Hi Zay,
Great question! Testing the mother will help strengthen the result of the paternity test. When there is an inconclusive result, meaning the result was above 0% and below 99%, we highly recommend testing the mother to obtain a concrete answer. However, in cases when the result is already conclusive, testing the mother will not change the outcome only strengthen the result. 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!
magdalena says
I want a dna testing if my father is my real father my sister did tell me they will do testinsg and my mother so I can see if my father is the same father as my 2 sisters. Is there a testing where I could.
Identigene says
Hi, Magdalena. Just give us a call at 888-404-4363 and we can discuss the best testing options for you. Thanks!
Hailey Craven says
I had a sibling DNA test to see if my daughter had a half sister. It was only a 10% chance with out my DNA with it. Does that mean it was inaccurate?
Identigene says
Hi, Hailey. In a nutshell, it means the test results were inconclusive. The chance of getting inconclusive results is much higher when the mother (you in this case) does not also submit her DNA.
Joey says
Hey what if the mother is included with the alleged father but it still comes up inconclusive?
Identigene says
Hi, Joey. With today’s modern techniques for testing and analysis, there’s no reason for that to happen with a straight paternity test if you’re testing with an accredited lab. The lab should test additional markers over and above the standard 16 if it’s needed, in order to get conclusive results. If you received inconclusive results for a paternity test when testing one possible father + one child + one mother.
Lisa says
So if possible cousin could be the father but only one is available for testing what can we do?
HomeDNA Identigene says
Hi, Lisa. First cousins only share 12.5% of the same DNA, so it won’t affect a paternity test.
Arlet says
Can a DNA test probability be 0% if the biological father match some numbers with my baby and I was not included in the DNA test? The biological father was told that he had to wait 2 hours before he would be tested and for my baby would be an hour
Identigene says
Hi, Arlet. It is not unusual for a man being tested to match the baby at some locations. If you and I did a test together, there would probably be some matches too…it’s just how the human genome works. The important thing is whether or not the possible father and child match at every location, and, since your report gave a 0% probability of paternity, it sounds like there was at least one mismatch. If the lab thought your DNA could have strengthened results one way or the other, they would have requested your samples before issuing a report.
Shay says
Did u redo the test and was he the father of your twins? In a similar situation, but waiting to do a retest.
Mack says
I got a swab test for me and my supposed son and it came back 0%. He is a breastfed 2 week old baby. To the best of my recollection I collect the swab less than an hour from him eating. Is there a chance that the breast milk DNA could cause a false negative?
HomeDNA Identigene says
Hi, Mack. No, breast milk cannot change the DNA…it can only possible contaminate the sample. But since you were issued results, the milk wasn’t a problem.
rose says
I did i test on my daughter and the father the results cane 99.99% he is the father however i did not send in my own dna. Would this matter? Should i redo the test ???
Identigene says
Hi Rose,
The biological mother is not required for testing. Sometimes, results come back inconclusive. This means the probability of paternity was between 0-99%. When this happens, it is more likely the mother is required to be tested to obtain a conclusive result which is anything about 99% or a 0%. Since you have received a conclusive result with the highest probability of paternity, the need to test the biological mother will not be necessary. I hope this helps answer your question. If you have any other questions or concerns, please call us at 1-888-404-GENE, Monday-Friday 9AM-6PM ET. Thank you for your comment!
Courtney says
So if there was or has been a request by the father to have a paternity test done on a child the biological mother does not have to get one done? Or she does need to get one done? The reason I ask is mainly because the father of my son smokes marijuana and drinks alcohol and I do not want that anywhere near my child at all but than the father claims that I have kid napped my son. An that I have been abusing my son as well when I would never ever lay a hand on my son what so ever I have been around other parents children an they can all say themselves that I have been nothing but loving, caring, an extremely supportive of their children! An that the parents want me too eventually watch their kids again with that said can a paternity test be done somewhere with just the mother and the child alone away from the other parent?
IDENTIGENE says
Hi, Courtney. It is always best to have the child test with the possible father. In the overwhelming number of cases, the mother’s DNA sample is not required, but we still recommend that she submit hers too, just in case. The fact that the possible father smokes and drinks would not affect his DNA. If you don’t all want to collect samples in the same room together (because you think the possible father is a bad influence), you could pay a little extra for a legal test. The only difference with a peace-of-mind versus a legal test is that all samples are supervised and submitted by an impartial third party. So he could have his samples collected wherever he is and you could be certain the samples really are his. Testing just the mother and child does not determine paternity…not without the father’s samples too. If you want to discuss this in more detail with one of our experts, please feel free to contact us at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern). Hope this helps and good luck!
Richard Macias says
Well, I suppose if you want to confirm maternity; otherwise, the mother’s dna is not necessary to establish Paternity.
Identigene says
Hi, Richard. That’s not always true, as indicated in this article. Sometimes her DNA is needed to confirm paternity.
Irene Gallagher says
Question:
Can you run a blood test of mother to be and father before baby is born?
Thank you
Irene
Meisha says
We do offer a Pre-Natal Paternity Test for an additional $400 and it will take 3-4 weeks to process. Please consult your physician or genetic counselor for professional advice regarding prenatal sample collection. There are two types of DNA samples that can be collected for this testing, and both are considered to be special specimens. The first option is a CVS (Chronic Veli Sample) and is typically collected between the 9th and 12th week of pregnancy. You can speak with your doctor to see if they will be willing to collect this type of sample for you. The second option is an amniocentesis and is typically collected between the 12th and 21st week of pregnancy.
Since these samples are special specimens, unfortunately we cannot guarantee that the samples will produce results because these samples are more difficult to work with. When you have decided to go forward with this type of test, once you have found a doctor to perform the sample collection for you, you will need to give us a call at 888-404-4363 and speak with one of our DNA consultants to set up your account. We will need to send a special collection kit to the doctor who will be taking the sample along with the required paperwork for a special specimen.
I hope this answers your question. Feel free to give us a call at 888-404-4363 if you have any further questions and we will be more than happy to assist you.
KIM says
I WANT TO TEST MY KIDS TO SEE IF THEY HAVE THE SAME DAD. THE FATHER WILL NOT TAKE THE TEST. I KNOW THE OTHER KID IS HIS, BECAUSE WE ALREADY TOOK AN DNA TEST. IF I TEST MYSELF AND THE 2 KIDS WILL THAT HELP ME FIND OUT IF HE IS THE FATHER THAT IM NOT SURE ABOUT>
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.
Mary Ellen says
Regarding sibling test. Known mother of 3 half sisters/daughters is deceased. 2 daughters have same known father, (one has the same mother as me) and he is deceased, and another daughter has known father, also deceased. 1 daughter (me) has unknown father. Is it possible to test whether one of these 2 men might be my father? Who would be best of these 4 1/2 sisters to test, and what would the fees be. Thanks. (hope this makes sense!)
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. Please be aware that without the biological mother(s) testing there is a greater chance that the results will come back inconclusive.
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.
Eden says
Hi i was wondering if my babys father is not here can his mother do the DNA test
IDENTIGENE says
Hi, Eden. Yes, the possible father’s mother can do the test. It’s best if the grandfather can too. You would also need to submit your DNA. Because of the extensive analysis involved, the cost of this type of test is $399 (single grandparent) or $350 (both grandparents). You’re welcome to call us at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) to discuss your options. A representative can also set up the test for you should you decide to do it.
Delecia says
If a DNA test is taken different days apart would that miss up the swab? The test was done behind my back she swab my son on the second of July and on the result it said it was swabbed on the third of July and the farther was swabbed on the 5th.. plus he want take another test!!
Admin says
Hi, Delecia. It doesn’t matter if cheeks were swabbed on different days.
Jerraca says
Im wanting to get my daughter a test but father refuses an is incarcerated can the results be conclusive using uncle that has same father an mother as the alleged father.
HomeDNA Identigene says
Hi, Jerraca. You can do this type of test, although our in-store kit is not the right choice. An avuncular (aunt/uncle) test needs to be ordered directly from the lab. To get the most conclusive results, it’s important that you submit your own DNA as well. You can learn more on our parent company’s website: https://dnacenter.com/dna-testing-services/aunt-uncle-dna-test/
Kieran says
Hi I did a DNA test on myself and my daughter and i was excluded as the childs biological father. The test was done correctly and 7 of the 15 markers or locations tested came back as a zero match. The Combined Direct Index was 0 and the Probability was 0%. I am just wondering is there any way this could be wrong and would testing the mother aswell change the result even though it is a conclusive 0%.
Thank You
Leslie Bryant says
Thank you for contacting Identigene. We provide the most accurate testing available on the market today. We have worked extremely hard to put measures in place that prevent any mistakes from being made throughout the entire DNA testing process from beginning to end. This is why the accreditations we hold as a laboratory are so important.
Our goal is to provide an accurate, quality service to all of our customers. An extremely important part of the testing process is how the samples are handled and managed as they travel step by step through each stage of the testing. The strict standards and procedures we follow extend to every single part of the process from the moment the samples arrive at our laboratory to the release of the analysis report when the testing is completed.
Since your results came back at 0%, then with the samples provided, you were excluded from being the father. Each test is unique and to determine if testing the mother would change your results, I would recommend calling in and have a customer service agent look up your test and review your results. If the lab had a questions about including the mother, they would have sent you a report that came back inconclusive and asked for the mother’s DNA.
I hope this information helps. 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.
Amarissa says
Can you help explain this:10 out of 15 markers matched at low from 0.51-3.77. The results came back 0.00% that my brother is NOT the biological father and the mother wasn’t tested and is refusing to cooperate. 5 markers didn’t match at all 0%. So my question is as long as one number matches on either marker,meaning child and alleged father then it’s a relationship,correct? Please explain as I don’t want to help do another cheek swab on this poor child.
Meisha says
Good afternoon Amarissa,
The DNA profiles in paternity testing consist of DNA markers (usually 15) that are used to determine if there is a biological match, the same “codis†markers used by the FBI for DNA evidence. Each Marker location shows 2 alleles. Everyone receives one number from their biological mother and one number from their biological father. These markers are analyzed to verify matches between the alleged father and the child. If the markers between the alleged father and child match they are given a Parentage Index number that indicates how common that marker is among the population. If the marker is rare the number will be higher, if the marker is common the number will be lower. These numbers calculate to give the probability of paternity. The probability of paternity for inclusions must be higher than 99%. The probability of paternity for exclusions will show as 0%.
In most cases you will see some matching alleles and that is because as humans we all share common DNA. In general, the possible father and child must match at every location (each genetic system we test). If a possible father does not match the child, then we can be 100% certain he is not the biological father of the child.
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.
Tara ross says
How do I go about getting a DNA test done for me and my possible father if he has been deceased for 2 years?
Meisha says
Good afternoon Tara,
We do have other testing options when the alleged father is not available such as: Grandparent DNA (alleged father’s parents), Sibling DNA (alleged father’s other children), and Avuncular DNA (alleged father’s brother/ sister) tests.
These other types of tests are considered family reconstruction testing. To ensure that you select the correct test for your situation we recommend you contact us at your earliest convenience.
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/
savanna says
Hi, I would like to know how much it would be to test a aunt and nephew, thank you
Meisha says
Hello Savanna,
We can test a sibling (sister or brother) of the alleged father to help answer paternity questions when the alleged father is unavailable. This type of test is an avuncular test.
The Avuncular 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 avuncular testing fall into one of four categories: strongly supported (conclusive), somewhat supported, inconclusive, or not supported.
I hope this information helps. If you have any additional questions or concerns, or are interested in an avuncular test please feel free to contact us 888-404-4363 and we will be happy to assist you.
Natalie says
We tested in a laboratory in Nicaragua, but have reason to believe that the results may have been tampered with by bribing (common down here). We have results from the mother, father, and child that supposedly indicate a match. We have purchased and are sending in an identigene kit to confirm before taking legal recourse to be sure. Would it help to include the printout of the results from said lab in the kit we are sending in as the mother is not available for further testing?
Also, the biological mother and supposed father’s markers are eerily similar. Is there any way that someone, not blood related, could have a genetic makeup similar enough to give a false positive result? And would your lab catch that?
Identigene says
Hello Natalie,
I apologize for the delay in response. Our best recommendation would be to do another DNA test and then compare the results of your new test to your first test. As a lab we test what is sent in to us as an entirely new test, we do not take previous results into consideration. Once you have both test reports to compare, if the results are not the same then the same participants did not test in both tests. If the same participants test the results will be the exact same no matter what lab you go through, as DNA does not change.
As far as the mother and alleged father’s DNA markers being similar, this would not provide a false result. The mother testing along with the alleged father and child will provide your absolute strongest result, and based on the information and DNA we are testing the results will be 100% accurate.
I hope this information helps. If you have any other questions or concerns, or would like assistance to set up a legal test, please contact us at 888-404-4363 and a DNA consultant will be happy to assist you.
Chanel says
If a test was taken, how can a father be excluded if he matches in most columns? Not all but some? I was told there are things they can buy to deceive the test, and if I never slept with his family then y would there be matches in any column?
Meisha says
Good afternoon Chanel,
Thank you for your question. The relationship index represents the strength of match between the alleged father and the child on that particular DNA marker. As humans we share some common DNA, so you will usually see a few matching up between participants, even if you know for a fact the participants are not related. For there to be a relationship between the alleged father and child, all the DNA markers tested would have to be a match.
The DNA profiles in paternity testing consist of DNA markers (usually 15) that are used to determine if there is a biological match, the same “codis†markers used by the FBI for DNA evidence. Each Marker location shows 2 alleles. Everyone receives one number from their biological mother and one number from their biological father. These markers are analyzed to verify matches between the alleged father and the child. If the markers between the alleged father and child match they are given a Parentage Index number that indicates how common that marker is among the population. If the marker is rare the number will be higher, if the marker is common the number will be lower. These numbers calculate to give the probability of paternity. The probability of paternity for inclusions must be higher than 99%. The probability of paternity for exclusions will show as 0%.
If you believe the samples were tampered with, our recommendation would be to do 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, or would like more information about our legal testing procedures, please feel free to contact us 888-404-4363 and we will be happy to assist you.
Holly says
My friend tested her child her self and the possible father it was 0% but the son looks just like the father can she have done something wrong
Identigene says
If a paternity test is done correctly, Holly, it is absolutely reliable.
joanna says
Hi, well the mom is refusing to participate in doing the swab. Any who how will I know for sure that my son is the father of my alleged grand child? Thank you.
Identigene says
Hi, Joanna. You can indeed do a DNA test for grandparentage. For more information, please contact us at 888-404-4363 during regular business hours.
Madeline orozco says
Can I run a test with granddaughter with I think is grandfather??
Identigene says
Hi, Madeline. Yes, you sure can!
Andrew says
If I had two children tested and one child came back 99.9% mine but the other child came back inconclusive, can the results of those two children be tested to determine sibling relation?? (Full, half, etc) without being charged for another test? The mother refuses to be tested to get a conclusive result due to already receiving child support for both children from me.
Identigene says
Hi, Andrew. If we performed a sibling test without the mother’s DNA, it would be expensive for you (another test would be required) and it would also come back inconclusive. In a case where paternity tests results are inconclusive, as with your one test, the only way to get a trustworthy result is to test the mother also.
Nicole says
What is the fee for DNA testing to determine grandparentage? The samples would include that of the mother, child, and paternal grandmother.
Thanks!
cengerman says
Hi, Nicole. From what you told us, we estimate that type of test would be $399. It would be $359 if the paternal grandfather were included. It costs less when more DNA samples are submitted in this case because it makes it easier to determine relationship. You are welcome to contact our client support team at 888-404-4363 for details.
Nilsa Torres says
I will like to know if I can have a DNA test done by hair strands from baby mother n father,three strands in a separate lunch bag mail to u guys.
cengerman says
Hi, Nilsa! When doing a paternity test, samples of cheek cells are much easier to extract DNA from and therefore the cost is lowest. Submitting hair is possible, but the cost is substantially higher and the number of hairs the lab needs is much more than just one. Please keep in mind that a legal guardian must give permission for the child to be tested and all participants in a test must sign their consent for testing. For complete details on what is possible as well as pricing, please talk to one of our Client Support Representatives directly at 888-404-4363; they’ll be happy to help you.
Lola says
Would it be a reliable test to rub myself, the mother, with both of my children to see if the two children had the same father? What is the fee for that test?
cengerman says
Hi Lola! We need to test the children with the alleged fathers in order to determine paternity. If you have more questions, you are welcome to contact our
Client Support Center at 888-404-4363 during business hours. They can help you figure out the samples you need and answer pricing questions.
keyona says
is it important that im tested if the alleged fathers are full brothers? could i get a fault positive if only one brother is tested without me nor the other brother? if so how would i know it is a fault positive? could 2 men share one child?( is it possible both brothers could be my daughter’s father?)
cengerman says
Hi, Keyona. No, it’s not possible for both brothers to be your daughter’s father. If we test the child, one brother and you, we’ll be able to tell if the tested brother is the father or is excluded from being the father.
Randy says
If both the mother and I gave blood samples for a prenatal paternity test, why would the first results come back inconclusive? Shouldn’t this be an open and shut case? Easiest results to get? What are some things that could make such a test come back inconclusive?
cengerman says
Hi, Randy. In our experience, the type of non-invasive prenatal test you had done doesn’t produce super-reliable results and so we don’t offer it. The only prenatal tests that we process are invasive ones, either a CVS or amnio. Because these types of tests can be high-risk for the baby, many obstetricians won’t do them for paternity reasons alone: there need to be other medical concerns.
So we suggest you do a paternity test after the baby’s born instead. A newborn’s cheek and yours are easily swabbed for samples, the lab fee is lowest, and the accuracy of the test is 100%.
Rose says
Hi,
I have a question about DNA father’s testing if he recently had a stroke and blood transfusion. Can it change his DNA results? Thank you.
IDENTIGENE says
Hi, Rose. Chances are excellent that the stroke and blood transfusion won’t affect results, but it’s best to make note of the transfusion on the paperwork so the lab knows. If you have any other questions, feel free to call our Client Support Center at 888-404-4363 and a representative will be happy to answer them.
Kim says
Hi,I will like to know why there isn’t always 2 results, sometime the child got 2 result and the father got just 1 result… Can that be the reason why the result is 0%? Will that say that someone is eating before the Dna test?
IDENTIGENE says
Hi, Kim. Each of two alleles (or numbers on the report) at any given locus on a strand of DNA comes from mom or dad. So if there is only one number at a locus on your report, that means that both alleles were the same number. For example:
14,14 would show as just 14 (14 for mom, 14 for dad)
14,11 would have both numbers listed (14 for mom, 11 for dad)
If someone ate or drank during the hour prior to the DNA test and this act somehow contaminated a sample, the lab would catch it and ask for a sample recollection. The lab would not issue conclusive results of 0% with contaminated samples. In fact, if results exclude a potential father, we test twice to make absolutely sure. If you have other questions or more help analyzing your test results, please call us at 888-404-4363 during business hours.
laura says
Hi , I was wondering if any rely comes back above 0% then does that mean he is the father. Or at what percentage does it have to be at for him to be declared the father of the child?
IDENTIGENE says
Hi, Laura. In order for us to give a conclusive positive result, the percentage of probably must be at 99% or higher.Even if the probability of paternity is 98.2896% (for example), we consider it inconclusive and will ask for the mother’s DNA sample to strengthen those results.
Oscar h says
Questions:
1. what’s the different between getting results from a clinic, and your actual Histpial ?
2. Are one of those places more accurate then the other ?
3. Are 9 markers enough to get a ligitimate result ?
4. What if out of those 9 markers, 6 matched the father, but only 2 of those 6 weren’t also numbers from the mother ? (So only 2 markers out 6 didn’t also match the mother)
Thank you! And hope I didn’t confuse you with my question!
IDENTIGENE says
Hi, Oscar! Here are some answers for you:
1. DNA is the same, no matter where it’s tested, so if a test is correctly performed at one facility or another, the markers should show the same information.
2. Again, if testing is done correctly, one is not more accurate than the other.
3. 9 markers may be more than enough to exclude a man from being the biological father. 9 markers may also be enough if they show a 99% or higher probability that a man is not excluded from being the father. Or more markers may be tested in order to get a conclusive result. We test up to 15 markers, if necessary.
4. 50% of DNA comes from mom and 50% comes from dad, so in order to get a result that can be conclusive for a man to be considered the biological father, the father’s DNA should be present in all 9 of those markers.
Hope this helps!
satish says
two mothers two son one father DNA t
esting without father need am help you labs and guidness
IDENTIGENE says
Hi! Please call our Client Support Center at 888-404-4363 and they can help answer your questions.
Julie Shelffo says
If only the mother, the baby and the mother of the alleged father are available for testing, is it possible to get a 97% probability?
IDENTIGENE says
Hi, Julie. It’s possible to get higher than 97% probability on a single-grandparent test, but we don’t guarantee it. There is always a chance of getting an inconclusive result. That’s why if there’s any chance at all of including the potential father’s DNA, that’s golden. The lab fee for a single grandparent test is $359. If you have more questions, or want to order the test, please call our Client Support Center at 888-404-4363.
Diane says
If a paternity test done with alleged child came back 0% but the grandmother had already done a test an it was 99% is there a chance one is wrong they were both at lab
IDENTIGENE says
Hi, Diane. There are a lot of “what-ifs” here, from what you wrote. I’m assuming the grandmother who tested is the mother of the possible father, correct? If so, our most likely conclusions as to what happened are:
(1) The possible father submitted someone else’s samples as his own. Unless you do a legal, supervised paternity test, this kind of fraud can happen.
(2) The possible father’s brother is also a possible father. This would explain why grandma was 99%, but her son who was tested was excluded. This is not as likely a possibility as #1, but it’s still a possibility.
Mistakes made at the lab level are extremely rare. In fact, at our lab, when results come back at 0% probability of paternity, the samples are re-tested by a different technician to make sure.
Diane says
Yes the fathers mother. It was actually the fathers DNA cause we tested his other daughter at the same time an the results were 99.99% so that’s why we don’t know what could of happened
Diane says
It was also a legal supervised test.
IDENTIGENE says
Well that is very strange indeed. Was the grandmother alone tested or was the grandfather tested too? Because I was be surprised at a 99% or higher probability on a single-grandparentage test, especially if the mother’s DNA was not also tested. A legal test probably rules out the possibility of sample fraud with the paternity test. It might be advisable to test the possible father and child again. Were the labs for the grandmother’s test and the paternity test the same labs?
Diane says
I’m not sure if the mother was included but I do know the grandfather was not included I never seen results for the grandmother DNA. but I do know they were not done at the same lab
IDENTIGENE says
Then I would more likely rely on the potential father’s results, but again, I suggest he test again if you want to absolutely sure, as I’m sure you do. Good luck!
Ruby says
Hi. My husband is recently deceased and he had always questioned whether his father was his biological father. Now our son wants to get the answer his father never got. I have swabbed my son and his alleged grandfather with the DNA Paternity Test kit. How do I submit this for testing? Thanks.
IDENTIGENE says
Hi, Ruby. Please call us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) and we’ll be happy to set up the test for you. Family reconstruction for paternity without a father’s sample is $399 if one grandparent participant participates and $349 if both grandparents participate.
Cash says
I’m the father and want to test my son; the mother is not wanting to be swabbed because child support. I was unable to be in my sons life for the first few years of his life because I was in the military. Been with him for the past couple of years has me noticing he favors my brother a lot more than me. However, he passed in an accident 2 years ago. So my question is; if I just swab my son and myself will it be just as accurate? I understand that not having the mother swabbed could cause inconclusive result. But if the child is my brothers could this cause the test results to come back as 99.9% that I am the father even if my full brother is? And is the DNA testing for parent done differently than a family reconstruction test?
IDENTIGENE says
Hi, Cash!
(1)Family reconstruction testing is done the same way as straight paternity at the lab level. However, it costs substantially more because there is so much analysis required, once the samples are run ($399 instead of $89). However, it looks like you just need a straight paternity test.
(2)If another possible father is your brother, you DEFINITELY want to alert the lab to that possibility. If they require the mother’s samples to get conclusive results, they will ask for them.
(3)Finally, unless you are a legal guardian for your child, you will need to have the mother’s consent to test the child, even if she’s not participating herself.
Please call us directly at 888-404-4363 and an expert will be happy to talk to you about your options. Hope this helps, and I wish you well!
Andrew says
They way you describe strengthening the validity of paternity tests by including the mother’s DNA seems to assume that maternity is certain, but what if both maternity and paternity were in question? Our son, now two months old, was conceived via IVF in the laboratory of a fertility clinic with [allegedly] my sperm and my wife’s egg. While mistakes are probably very rare, we want to confirm that the clinic used the correct specimens. I just mailed all three samples as instructed in the kit, but on the envelope with the mother’s swabs I checked “other” and wrote “alleged mother (IVF).” Will your staff understand what this means, and is your testing methodology able to determine both maternity and paternity with the same sensitivity/specificity as in the typical three-sample case when maternity is assumed?
IDENTIGENE says
Hi, Andrew. Yes, our test will determine maternity. However, since you’re asking about the maternity of the mother, there will be an additional $89 charge because we’re answering two questions instead of one. Does this make sense? I suggest you contact our Client Support Center directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) and they can answer any additional questions you may have. If you paid ahead of time online or by phone, they would be able to look up your case now and make note of your situation. That way, everyone involved in processing your samples would have this information. Also, you could take care of the additional payment needed, if you haven’t already.
patricia says
the supposed father tested with the kid and the mother was not around for dna, the results said no but this kid looks so much alike him, would the machine have done a mistake
IDENTIGENE says
Hi, Patricia. In the overwhelming number of cases, the mother’s participation is not required. If her DNA were needed for a conclusive result, the lab would have asked for it. I don’t know if the test was done with us or not, but in our case, if we get results of 0% probability, a different technician tests samples again to double-check that we have correct results. Although we use robots during testing, the analysis itself is done by an expert scientist, so the machine can’t make a mistake. So, all that being said, I have three possibilities to give you:
(1) The results are correct and the man tested is not the biological father
(2) Did the possible father collect his DNA with a witness present? If not, he could possibly have submitted someone else’s DNA as his own. If his collection and submission of DNA was unsupervised, then you may want to do what is called a legal test wherein sample collections and mailing is supervised by an impartial third party. That way, you can be sure the DNA submitted actually belongs to who they claim to be.
(3) Is it possible that the possible father’s brother, uncle or dad might be the biological father? You mention how much the child looks like the possible father, which is why I suggest it. Looks are never proof of paternity, however.
Hope this helps!
Coleen says
Hello, I had a DNA test done with my daughters father (who I know a billion percent is the father I wasnt with anyone else in 5 years we were together) however, he passed away a month before our daughter was born, so his family wanted the DNA test done so we used his brother & his mom and the baby of course, the result was 78%. That wasnt enough for his mother and the test suggested to add the mother (me) so we redid the test with his mom, his brother, me and my daughter and the results came out to 34%!!! I dont understand how this can be, when I KNOW he is the father. Theres no other way I would have gotten pregnant and I know exactly when I got pregnant as we had sex for 14 days straight at the time. How did this come up, and is there any other way to test for paternity without the fathers DNA becasue he is buried?? His family and mine are now torn apart because they dont believe me and this is breaking my heart for her daddy would have not wanted this to tear us all apart. Any explanation????? Please help!@
IDENTIGENE says
Hi, Coleen. You didn’t mention if you tested with us or a different lab, but I’m going to assume you didn’t because those don’t sound like results we would give out. The experts I spoke with here are suspicious that the probability of paternity would drop after your samples are added. I would contact the lab you worked with to have them go over the report with you. Should you decide to test again, we are one of the most reputable DNA labs in the country. Feel free to give us a call at 888-404-4363.
GAURAV says
CAN IDENTIGENE (DNA) TESTING DONE OF PATERNAL GRANDMOTHER AND HER GRANDCHILDREN BE AUTHENTIC AND RELIABLE TO DECIDE WHETHER THE GRANDCHILDREN BELONG TO THAT FAMILY OR NOT?
IDENTIGENE says
Hi! Yes, we do grandparent testing when the possible father is not available for testing, as long as the parents or legal guardians of any minor children give their consent. The most conclusive results can be obtained when both parents of the possible father, the mother, and the child all submit their DNA. For more info, please call us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern time).
Tara says
I see where you said you do grandparent testing. I would like to know if the mother have to be tested also or can the grandparent test with the child.
IDENTIGENE says
Hi, Tara. We can just test just the grandparent with the child, but there’s a higher chance of getting inconclusive results and the customer wasting their money. With this kind of testing, the more participants the better. A mother’s participation is essential.
maria says
if the mother is breast feeding the baby and i sent the babies and the possible fathers cheek swabs- would the breast feeding affect the results?
IDENTIGENE says
Hi, Maria. Before swabbing the baby, make sure they haven’t nursed for the hour before, and the samples should be just fine. If you forget and let them nurse, it won’t affect results, but it could affect the quality of the DNA from the baby and we’d have to ask for a sample recollection.
mary says
If Mr. X’s hairs are submitted for a paternity test, could a boy have a DNA test result that shows Mr. X is his father?
IDENTIGENE says
Hair samples are generally not used for paternity test: cheek-cell samples are. But speaking in generalities, a DNA test will show whether or not a man can be considered the biological father of a child or not. If you have questions, feel free to contact us at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern Time).
GL says
If a woman has incest with her son and a baby (male) is born, what are the chances of a child’s DNA (male), matching the husband.
IDENTIGENE says
The baby’s DNA will not match the husband’s.
Dawn lee says
My son is deceased.recently found out he may have a son..I would like to know who should I have tested..me,( potential grandmother),my son’s daughter,( my granddaughter) or my daughter? I would like a at home kit also..can you help me?
IDENTIGENE says
Hi, Dawn. I’m so sorry about your son. We can do a family reconstruction test for you to help determine if your possible grandson is related to you. I think it would be easiest for you just to call us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern). One of our experts can explain your options and give you pricing. I hope this helps and wish you all the best!
Mami93 says
I live in Louisiana. I sent my samples out in the mail on April 18th. When do you think the will arrive at the lab and when do you think the results will be ready? Will I receive a phone call to know that my result have made it there and when they are ready?
Admin says
Hi there! I cannot give any confidential information out over the internet, for privacy and security reasons. I’m sorry, but am sure you understand. If you sent your samples via the postage-paid envelope included in the kit, you should allow 5-7 days for it to reach us. Once your samples arrive, a notification will be sent to the email attached to your case. Another email notification is sent once results are posted to the secure online account. Once samples arrive, results are posted in 2 business days. We do not call our clients, but you are welcome to contact us at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern Time) or email us at info@identigene.com. Wishing you the best and thanks for testing with us!
Shelli Kearns says
Hello my name is Shelli and I have some questions first off I have been helping take care of a little girl and j believe she is my sons but he won’t submit to a dna test I believe with my heart she is his but I can’t get a test for her with him so my question is can I test her with my dna without her mother or my son her mom’s mom has custody of her how much would it cost???
Admin says
Hi, Shelli. We must have written consent from the child’s legal parents or guardians in order to perform testing. The price for a single grandparent test is $399. You’re welcome to contact us directly if you have more questions at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern).
jacki blommel says
my mother and me were tested. My sister on my mother’s side was tested. My Maybe sister on my possible father’s side was tested without the mother and father is deceased. My sister on my mother’s side was also potentially a half sister with my sister on my possible father’s side. the results came back inconclusive. My mother’s side sister with potential half sister from father was 54%. Me and my possible father daughter being at 10.8%.
My mother and the possible father have always claimed that my sister on my mother’s side was fathered by him. So I asked Identigene to do a test with my mother’s side sister being known biological of father and sister from father as half of my sister on father’s side. The results were 99.6% conclusive that we were all sisters. Can this be true or could this happen with anyone being said as father’s half sisters. sorry so confusing.
Admin says
Hi, Jacki! I suggest you contact us directly, since customer service has direct access to your confidential test numbers and reports. It’s hard for me to make an assessment in this context. Our number is 888-404-4363, and we’re open M-F, 9 AM to 5:30 PM.
Leanne Laursen says
Thought-provoking analysis , I am thankful for the insight – Does someone know where I might grab a fillable a form document to use ?
Admin says
Hi, Leanne. Fillable form document for what purpose?
S says
Why do my numbers match the alleged fathers? Is it possible I misplaced them?
Admin says
Hi! Without more details, it’s difficult for me to give you an answer. I suggest you call us directly at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern Time).
Yolanda says
My Daughter and her dad took a informational dna which came back 0% proprobility. I was not included in the test. Her alledge dad had a procredure done prior to taking the test using dye injection and also he ate right before they took the test. My Daughter ate as well. They didnt use a third party test but did go to a lab. Should we retest because my Daughter looks exactly like him.
Admin says
Hi, Yolanda. Are you saying the lab also did the DNA collections for them or did the lab just process the results?
Yolanda says
They lab did the collection swab and sent it off to be read.
Admin says
If the lab checked IDs and everyone who was tested is who they said they were, then you can trust the results. The science is sound. Looks alone are not a determinant of paternity.
Yolanda says
Thanks!!
Amber says
The person i think may be my dad has passed away he never had any other children but he has a full sister that is living and is willing to submit dna. Can we use her dna and mine and my moms to find out if I’m related to the potential fathers sister??? please help!!!!
Admin says
Hi, Amber. We do this kind of family relationship testing all the time, although be advised that the lab fee is considerably higher ($399) than for a straight paternity test ($89) because it involves much more analysis. Just give us a call at 888-404-4363 and one of our experts will be happy to consult with you and get you started.
Jesse Lee Neighbors says
i Need TO HAVE MY MOTHER AND FAther testested, casue i have len he is not my real dad
Admin says
Jesse, please call us at 888-404-4363 so we can help you directly.
Shonda says
When collecting finger prints for paternity, is it just for Identity purposes or is it tested as well?
Admin says
Hi, Shonda. Our lab does not require fingerprints, however, there are some that do. It is for identification purposes only and not for testing.
Shonda says
Thank you
Jose says
PodrÃÂa realizar la prueba solo el padre y el hijo sin incluir a la madre. Cual seria la probabilidad de que salga que yo soy realmente el padre.
Admin says
¡Hola! Si el niño es menor de edad y su nombre no aparece en el certificado de nacimiento , necesitará el permiso firmado de la madre para la prueba de paternidad . En la mayorÃÂa de los casos , no es necesario el ADN de la madre para confirmar la paternidad .
Lawrence Bowman says
My alleged father has passed away at age 82, (no DNA available). He has 2 daughters (my half sisters) . One daughter and i ran a sibling dna which was inconclusive.
On advise i ran a test with the brother of alleged father and myself, came back 0.00%.
There is overwhelming factual evidence that this man is my father, but it would appear not by DNA.
My mother is still alive, aged 80, but not tested and in the mix. Where do i go from here?.
The testing was done by Lab Corp.
Admin says
Hi, Lawrence. It would have been optimal to test both your mother and your uncle the first time, yes. I have a question. Did you do a paternity test with your uncle or did you test to see if you shared an uncle/nephew relationship? I ask because sometimes people mistakenly think that doing a paternity test with an alleged uncle is exactly the same as doing it with his brother, the alleged father. But it’s not!
Lawrence Bowman says
Good question, i shall put it to the collection agency to ask the lab concerned on Monday. I will get back to you.
Lawrence Bowman says
Apparently they did both tests. I feel i have very little faith in the tests. There is a partial (false tooth) in its cover from the alleged deceased father, is it possible that after 2 years to get a good sample from this?
Admin says
The science for DNA tests is absolutely sound, Lawrence. It’s hard to say what kind of (if any) DNA could be extracted from the false tooth. Any kind of DNA that might have remained on the surface could be gone by now, depending on how the tooth has been stored. I’m sorry you’re in such a difficult situation, but there are no easy solutions. I would consult with LabCorp, who did your original testing, to see what else can be done. Perhaps they’d be willing to test your mother and factor her profile in to a new analysis. Worth a try!
Sammie sam says
I got a test done 2 years ago with you all it came back 99.99% he’s not excluded as the biological father. Meaning he’s the father. But the grandparents want a test with them how much will it be and I will it show the same results that they are the grandparents as well
Admin says
Hi, Sammie! As long as the grandparents submit their own DNA (and not someone else’s for whatever reason), the results will show that they are the grandparents. The only other way it would show they are not the grandparents is if the grandfather is not the biological father of his son. Unlikely, but you never know. Pricing for grandparent testing starts at $399 for one grandparent participating, and $350 for both paternal grandparents participating. To get more questions answered or to set up the test, just give us a call at 888-404-4363.
jess says
is a not supported result the same as a exclusion?
Admin says
Hi, Jess! It could be, but not necessarily. I’d have to see the full report to really answer your question in context. I highly recommend that you call the lab where you tested and ask for help in understanding your results.
sammer says
hi
my father died and i do not have uncle and grandfather just i live with my mom and i want to taste myself and my mom to know she is my mom or not . is it possible ?
Admin says
Hi! We do maternity testing, yes. The procedure and the lab fee is the same as it would be for a paternity test. You just need to indicate on the order form that you want a maternity test. Keep in mind that you can’t test secretly. You need to be upfront with your mom and she needs to give her consent for testing. I hope this answers your question. Please feel free to ask more, if you need to!
Ellen Smith says
Hello, my mother has been deceased for 11 years and i just recently found out that another man could be my biological father if we are to get a test done and the results are inconclusive who would be the best potential person that could be tested on my mother’s side?
Admin says
Hi, Ellen! Is the possible father willing to do a DNA test with you? Because, if so, chances are very good that we can get conclusive results without anyone on your mom’s side. That being said, the best person on your mother’s side to test, should it be needed, would be your mom’s sister or mother, if she’s still living. Hope this helps!
Kendra Williams says
Hello, I had a DNA test done on myself, my daughter and her alleged father. This test was a legal test but I feel like it may have been done in error but the DNA test center is saying other wise. They swabbed each of our mouths during this test at the same time but the person doing the test messed up on my daughters first swab and had to repeat the test. They took pictures and said we were complete after signed for each test sample. About 1 1/2 passed by and I received a call from the center asking me what my daughters name was because they had the wrong last name on the sample but assured me the test was accurate to there knowledge. I asked f we could repeat the test and they said it was fine and there was nothing to worry about. We received they results about 2 weeks later and they were 0% probability that he was the father even though when I looked at her genetic markers ever number matched his and mine except for 1 set so they said he was not the father. I want to know if we should repeat this test as I know I have not been with anyone else and was very positive that he was the father and my daughter looks just like him and his family. What are your thoughts? Can a DNA test be wrong and have different results when taken again?
Admin says
Hi, Kendra. Seeing as the test was witnessed, you can be sure that the samples submitted legitimately belonged to who they say they did. When they run the test, they check the sex gene, so that is an additional check on the samples. As to having one mismatch only, that is not as unusual as you might think. Since a child gets 50% of her DNA from one parent and 50% from the other, there HAS to be a match at each locus. Even though numbers may match up at other loci, there is no way of knowing whether that matching number comes from mom or dad. Bottom line: if you went through an AABB-accredited lab for this test, you can most likely trust the results. Physical looks are never an absolute determinant of paternity. Of course, you can always test again, but it’s probably a waste of time and money.
Amber says
Hi I had a DNA test done for my daughter n her alledge father the test came back 0% but I did not take the test what does that mean
Admin says
Hi, Amber! In the overwhelming number of cases, the mother’s DNA is not needed in order to get conclusive results. There are times when her participation can strengthen results, however, which is why we recommend that she provide a DNA sample too. In your case, a test that came back with a probability of paternity of 0% means that we do not consider the man tested to be the biological father of the child. Hope this helps!
Dawn Hall says
A relationship test was done with a test result of 97% probability of being related. This was between an alleged niece and aunt. The mother of the alleged niece was not tested. Paternity test was done with 0% probability. All tests were done in a lab but not the same lab but the same company. The parties tested gave government issued ID’s at the labs. According to the lab that did the relationship test, the swab was done incorrectly for the alleged father at the other lab (the alleged father described the swab as being done for about a minute with 4 swabs at the same time), and that the 0% would be an inaccurate test result. The lab that did the relationship test had both the alleged niece and aunt at the lab at the same time. The lab that did the paternity test has not sent the results to the alleged father and but they did call the alleged niece with the 0% result. There is a lot of confusion and the parties involved would like to know if putting the mother in the test would possibly give a result that would match the paternity result. If the paternity test had enough cells to test, then would the test be accurate even though the sample may have been taken incorrectly?
Admin says
Hi, Dawn! Are any of these labs accredited? Because the processes you are describing for DNA collection are very unusual (4 swabs at once for a minute). All that being said, a straight paternity test (child/possible father) is a much more reliable test than aunt/niece and a paternity test results generally trumps a relationship test result. Since there is so much confusion, if it’s possible, I highly recommend doing another paternity test (either at home if all parties are available to serve as witnesses to each other), or legal (wherein a third-party witness maintains sample chain of custody) so that results can be used in court. Participants in this paternity test should include: child, alleged father, and mother. I hope this helps. You’re always welcome to contact us directly to speak with one of our experts at 888-404-4363 (M-F, 9 AM to 5:30 PM Eastern) if you have more questions.
Jason says
I had a DNA test done. It was order for me the boy and the mother be there but she didn’t show up. I have read online that if all three parties ain’t there that it could give a wrong result. It says I am 99.9% the father but feel it is wrong. Could it be wrong if she wasn’t tested as well?
Admin says
Hi, Jason! Really, the mother’s participation is only needed if her DNA would strengthen results of a test between a possible father and the child. For example, she could push a 95.5% probability to a 99.9% probability. In your case, her DNA wasn’t needed in order to get conclusive results. From what you told me, you’re the biological father!
Micole says
Good evening..i slept with my fiance and someone i loved..and i later found out i was 5 months pregnant and had a daughter whom died at 11 months. The truth is i always had doubts about who is the father..Now my ex wants DNA paternity rest as he believes that she was his. She didnt have siblings…i have siblings…please advice.
Admin says
Hi, Micole. I’m sorry about your daughter. Without her DNA, however, it’s not possible to determine who her biological father was.
DaNazshia says
Has there been any situations where the percentage may be 50% for the father? Does the mother’s DNA enhances the possibility for the father to be the biological father? For example if the percentage is 50% and the mother’s DNA is tested will that make the percentage increase? How close related does the father need to be if there are two being tested?
Identigene says
Hi, DaNazshia! When doing a straight paternity test, a possible father has either a 99% or higher probability of paternity or 0%. There is no half way. If there is one mismatch at one location and analysts suspect that mismatch may be due to a mutation of some kind, then being able to also test the mother’s DNA can definitely strengthen results and provide a more sure percentage of paternity probability. In your last question, are you asking what the chances are of a getting conclusive results if two possible fathers are closely related? In that case, the mother’s DNA is super-helpful and the lab must be notified of the familial relationship between the two men. Best case scenario is for the second man to test too. Hope this helps!
Genesis says
I have a boyfriend who just recently got a home dna test back which was 99.9 % his. By it being a home dna test and the mother sent it off i don’t trust her and was wondering if there is a way to determine between the mother dna and father dna even if she tried to use her dna as the fathers sample?
Identigene says
Hi, Genesis! We do test for the AMEL sex chromosome and can tell if a sample is a male’s or a female’s. If a sample that is supposed to be a male’s is really a female’s, testing is suspended and the lab requests new samples.
silvi says
Hi my name is silvi,and i had a child with my cousin .and now i want a dna test .should i do a dna only him and the child or should i include myself in the dna since we are related.thanks
Identigene says
Hi, Silvi. You absolutely want to include your DNA as well, and notify the lab of the biological relationship between you and the possible father.
Kilgore Trout says
Question: I would like to use my wife to strengthen results but now willing. Can I use her identical twin sister in her place? I know they share the same DNA and the markers tested would show the same or in distinguishable.
Identigene says
Hi! Yes, you could in theory, but only if you’re absolutely sure they are identical.
Kilgore Trout says
Yes they are, Thank you very much.
Identigene says
You’re welcome!
Akosua says
I live with my mum but she keeps making utterances that she’s not my mum,my dad too is dead how do I test to know if she is my real mum
Identigene says
Hi, Akosua. We do maternity testing and can test you and your mum if she is willing. Please give us a call directly at 888-404-4363.
Sharon says
I did the DNA with the father and me and our son and it came out negative but in the Id thing he has more matches numbers the father and son than me with my son. The mother got less but it came out he is not the father I don’t get it if the dad has more matches number but still came out negative
Identigene says
Hi, Sharon. It’s hard to comment accurately without having your test results in front of me to look at. The child’s DNA is always 50% the mother’s and 50% the father’s. If there are any mismatches whatsoever with the father’s DNA (even if some or a lot of the others match), then he is not considered the biological father.
Juanita Trosper says
Can I just test myself and my mother? Don’t really care about father DNA.
Identigene says
Hi, Juanita. The only way to answer a paternity question is to include your father or one of his close relatives in testing. Without DNA from his side of the family, the question of your paternity cannot be answered. If you’re questioning whether your mother really is your biological mother, then you can do a maternity test.
Elizabeth says
I tested my daughter and her alleged grandfather. I also didn’t send my dna. And I checked the alleged dad boX and sent it that way. I got the results and it’s says he’s not the father. So does that mean he’s not the grandfather.
Identigene says
Hi, Elizabeth. Because you ordered a paternity test, the question you asked the lab to answer is this: “Is the man being tested the father of this child?” You did not ask “Is this man the child’s grandfather?” So it makes sense that your results would say he’s not the father…because he’s not! This doesn’t necessarily mean he’s not the grandfather, though. You would need to do a grandparentage test and this time be straight with the lab about what you think the relationship of the man being tested is to the child being tested.
Louise says
Hi. If the mother and the potential father are related would that effect the result of the paternity test? I have read that if it’s 99.99% then he would be the father but he is worried that because they are related it would show a high result anyway. Thanks
Identigene says
Hi, Louise. It depends on how closely-related the mother and potential father are. If they are cousins, for example, it would not be an issue. If they are more closely related, that’s a different story. If they’ve already tested, I suggest they contact the lab to discuss. It is always best to notify a lab about any biological relationship before testing, since it could affect analysis.
Louise says
Thanks for your reply. They are second cousins. So that shouldn’t effect the paternity test then? Will be receiving a dna test through the post in a couple of days to get the test done.
Identigene says
No, Louise. That relationship is distant enough to have no effect on a paternity test. However, to be on the safe side, they should still notify the lab of the biological connection.
Louise says
Ok will make sure he let’s the lab know when he sends the test off? Thank you
Identigene says
You’re very welcome and good luck. Glad you reached out to us for answers!
Gail says
NO D.N.A. test has ever been done on the child which is suppose to be my grand daughter.The mother is in jail and my son never took one because the doubts been high. We have custody of the child. Would my D.N.A. (grandmother) and the child’s D.N.A. prove if we are related?
Identigene says
Hi, Gail. You’re more likely to get conclusive results if the mother were able to participate, but unfortunately it sounds like she’s not. Is your son not willing at all to do a test? That would be best and cheapest!
Lin says
Hi, so I’m five months pregnant. The man I was with on and off for two yrs left me when I was four months along. He is insistant that the child isn’t his. But according to three different drs. I conceived around the second week of Feb. Which if I go back through my emails and various social media I was indeed with him from the first week of Feb to the third week of Feb before we split up again for a short period. He’s convinced if was the guy I slept with in march’s kid but that’s scientifically impossible if conception was in feb. Anyway he’d refusing a blood test or paternity test and won’t meet me anywhere to talk. So is it possible for his mother to submit to a blood test if I can convince her to?
Identigene says
Hi, Lin. If you want to do prenatal paternity testing, it must be the alleged father who participates and not an alleged grandmother.
Jeff says
Had a Motherless DNA test (No advance testing) completed result show 99.99 match at all markers. I am pretty convinced and still maybe grasping at straws. I’m in a small town another possible farther could be related and pretty close related. As well there may even be further relation on Mother side that’s not that close. My question is would a normal test flag this or is this something that has to be disclosed. Should I retake this test?
Identigene says
Hi, Jeff. If there is another possible father closely related to the man being tested, this information (at the very least) should be disclosed to the lab. It’s even better if both men can be tested. But seeing as you were given a 99.99% probability of paternity, chances are excellent that you are the biological father. You didn’t mention specifically what the biological relationship is between possible fathers or what you mean by “close related.” If it’s a cousin relationship, no worries. If all of this is going to bug you, however, it may be worth it to you to call us and discuss it further with one of our relationship experts. The number is 800-344-9583.
Stephanie says
If mother and child DNA swabs got mixed up in the envelopes with the wrong names can it mess up the test
Identigene says
If the child is a girl, then a mother/daughter relationship will still be determined. If the child is a male, then testing would be halted and the lab would reach out to the mother to clear up the problem.
cedes says
What time does results usually come in it said I was souspped to get them today by 6?
Identigene says
Hi, Cedes. Results are posted at 6 pm Eastern. Once results are actually posted, you’ll get another email letting you know you are welcome to log in to your account and view the report.
tiffany says
Since yesterday was a holiday will I still receive my results the email said I was souspped to receive it today at 6
Identigene says
Hi, Tiffany. The holiday pushed all test results back one business day. You’ll get an additional email when your results have actually been posted.
Krystina says
It’s been 3 years since my ex did a test with my daughter. I want to have myself tested because I strongly believe that he is her biological father even though the last test came back as him not being the biological father. How much would it cost to just test my DNA markers?
Identigene says
Hi, Krystina. We would require your ex to test again, since it’s been such a long time since his last test. It’s not that his DNA has changed since then, but we still require it. In the original test, if your DNA had been required in order to get conclusive results, the lab would have asked for it. So you can be sure the results you were given were accurate for the samples that were submitted for testing.
Ashley says
I’ve read that results could be completely different if the mother is not tested is that true? WE got a test done came back 99.9993 that she was his but I believe with me being tested it will come back 0% because the timing does not add up for her to be his.
Identigene says
Hi, Ashley. A mother’s DNA is only asked for if it can confirm results one way or the other, or to get the percentage of probability higher than the minimum threshold of 99%. Sometimes our memories play tricks on us, but science is impartial and straight forward: it’s either yes or no. It certainly appears that the man tested is the biological father.
Ashley says
So how could you tell which chromosome is from the mother if she is not tested? Lets say that on the test there were only 3 spots where the numbers were the same for the child and the father but the other spots it could have been the mothers because the percentage index is low for the matches for them
Identigene says
Hi, Ashley. There has to be a match with the alleged man being tested at every single locus (barring the possibility of a mutation) for the man to be considered the biological father. If the mother is untested, the assumption is made that a gene is hers if the other one matches both the man being tested and the child. Because we know one of the genes has to belong to the mother, if there is no matching gene at the location with the man being tested, that is a red flag.
K says
My boyfriend did a home paternity test on his child 6 years ago. Those results came back as 99.99% that he is the father. His case was finally brought to court last month and a paternity test was done. The results came back again as 99.99%. BUT, they are saying that another man was tested 3 years ago, and that he also tested positive. They won’t tell us who was tested, and we don’t know the percentage of his results. What does all this mean? So confused because we were pretty positive the child is his.
Identigene says
There can only be one biological father for a child. I would be confused too and I don’t have any idea why they would tell you this.
K says
He was told it could possibly be a blood relative of his that was tested, or somebody else, but they aren’t sure. Could it be a blood relative of his that is the actual father? Given the circumstances of the relationship with him and the mother, another member of his family seems highly unlikely.
Identigene says
With a 99.9% probability of paternity, it would be extremely unlikely that anyone else is the father, even a close biological relative.
Nicole says
Can we use one test kit for one possible father and two children?
Identigene says
Hi, Nicole. You can, however you will be charged for two lab fees, for a total of $238. Rather than trying to explain on the paperwork, I suggest you call us directly at 800-344-9583 to get your kit registered.
Vanessa says
How can I do a d.n.a test if my father passed away
Identigene says
Hi, Vanessa. You can test with other close biological relatives of your deceased father, if they are willing. To discuss your best options, I suggest you call our parent company, DDC, for a free private consultation: 800-681-7162.
Carolyn says
The suspected father was using a vape before he went in to get his DNA tested. Will that affect the DNA test results?
Identigene says
Hi, Carolyn. No, it wouldn’t.
Reci says
Paternity result is 0%; mom not included in the test; father is admitted drug user & alcoholic who had massive heart attack and medical treatment included a blood transfusion; mom is adamant that father is the only person she was intimate with. Could the alleged father’s medical issues affect the results? Can’t confirm father was the male donor. Child and male did not submit samples at the same time. Should tests be done again with mom, child, and male submitting samples at the same time?
Identigene says
Hi, Reci. Drug, alcohol use, and heart-attack treatments would not affect paternity-results, EXCEPT for the blood transfusion. How long after the transfusion did he do the test, do you know? That could make a difference. If you can’t confirm father was the male donor, then you have no way of knowing whether or not his DNA was analyzed. Sounds like it’s best if you test again, but this time do a legal, witnessed test (with court-admissible) results to ensure participants actually are who they say they are. Regardless of when the blood transfusion was done, the male should let the lab know when doing this test. To get any additional questions answered and/or to make arrangements for a legal test, please call us at 800-344-9583.
JEROME says
i would like to know if my father is the father of my son there was a question that my ex wife slept with him how do i test for that my father is not around have’nt heard from him since i brought up i wanted to get the test done how do i test for this?
Identigene says
Hi, Jerome. Of course, the best scenario is to test both you and your father. Since that doesn’t seem possible, you should be tested along with your son AND your ex-wife. Be sure to notify the lab ahead of time that the other possible father is your father. This way, they can test additional genetic markers to ensure accurate results.
Cassy88 says
Can I test the mother and brother of the deceased father and swab the child to establish paternity?
HomeDNA Identigene says
Hi, Cassy. Yes, you can. That’s called an avuncular (aunt/uncle) test. The kit in stores and its accompanying lab fee are not designed for this type of testing. You are welcome to contact our parent company DDC directly to set it up: 800-681-7162.
Jackie B says
Will I get accurate results if I test a child that we question paternity about and his brother who we know for sure is the son of my fiancé along with the alleged father? The mother will not agree to the test but we want to test the eldest and possibly use his DNA’s to get the paternity results.
HomeDNA Identigene says
Hi, Jackie. If the child in question is a minor, you need to get the permission from the child’s legal guardian. I suggest you call our parent company DDC directly at 800-681-7162 to discuss what your best options might be.
Ben says
How tests to find our real biological grandmothers who were both already passed away in over 20 to 43 years ago but same area of hospital and may find their dna bloods to where test blood for born my mother? she is alive in her home nurse.Can it-old DNA blood checks on old copy in some where? I need to find real biological grandmother! May I find it ?
HomeDNA Identigene says
Hi, Ben. You would need to contact the hospital.
Jj says
We did a paternity test with just baby and alleged father and it came back 99.99999%, which is what we were wanting. However, I’m still having issues seeing any similarities between the two. I know that you can not just go off of appearance, but it is really bothering me. We did another test because I can’t get it off my mind and I, the mother, participated in this recent test. I have read that adding the mothers dna doesn’t change results, but only strengthens results. But I am scared to death we will get different results. Has this ever happened?
HomeDNA Identigene says
Hi, Jj. The only way results could be different is if different people submitted their DNA for testing.
Jj says
No. It is all the same. I watched it all in my home the first time. I guess I’m wondering is what if the father and I share the same alleles as the father and baby share is some spots? Does this happen?
HomeDNA Identigene says
Yes, sometimes. And that’s taken into account when doing the analysis. Again, if all participants are the same, then the results of the second test will be exactly the same, as will the DNA data. No worries!
Keria says
Hey I Recently Purchase A Home DNA Test (DDC). I Wanted To Know If I Test My Daughter An Allerged Father Daughter Would i Still Get The Same Results. The Father Is Current incarcerated and the only people we’re able to test is his kids with my daughter. So we want to know will we get the same results??
HomeDNA Identigene says
Hi, Keria. The kit is not designed for sibling testing. As indicated on the box, it’s for testing one alleged father + one child. I suggest you give us a call directly at 800-681-7162 so we can set up the right test for you.
Curious says
A possible match was discovered on Ancestry.com, so a paternity test was taken for a person over 50 years old, and the results were 99.99%. However, neither the mother nor the alleged father remembers conceiving with the other. The issue is the possible father has a full brother, who is now deceased, and I have learned that brothers can garner an exact DNA result. So, the question is: Would including the mother in the DNA Test, along with the child and possible father, yield a more concise result? Please respond. Thank you.
HomeDNA Identigene says
Hi. Those results are extremely conclusive, and including the mother in another test with the exact same alleged father and child is most likely not going to help determine if the brother of the man tested is the biological father. You could try testing the mother, alleged father, and child again, but this time inform the lab ahead of time about the other alleged father and his relationship to the man being tested. What would help the most is including a known first-degree biological relative of the brother, such as one of his children. Of course, with any testing going forward, it is absolutely essential to let the lab know that there are two alleged fathers in the case and the they are full brothers. This will help them in their analysis.
Salsakm says
Hi ex boyfriend and my daughter did dna test by december 2009 the results was negative ,their pictures was send along with blood samples and want to know how this help cause blood sample reveals the results.
HomeDNA Identigene says
Hi, Salsakm. I hope I understand you correctly. If pictures were taken and IDs checked, then that step is necessary for results to be court-admissible. But you’re right…it is the actual samples that determine what those results are.
Rhen says
There is a suspected father of “T”and would like to be subjected to paternity dna testing as suspected father denies. However; here is a DNA background, the suspected father’s mother and the uncle of the mother of “T” happened to be cousins. In short their root are related to each other by blood.
1. How will this affect the reliability of the paternity dna result? Given that they are related by blood, (assuming he is really not the biological father & is jz being insisted due to inheritance) will the paternity test declare that he is the bilogical dad even if he’s not just because the mom & dad came from 1 dna root?
3. Since they are relatives, is it still appropriate to take the paternity test?
4. Is there alternative or more appropriate test for this case?
HomeDNA Identigene says
Hi, Rhen. That relationship is too distant to the child, so it shouldn’t be an issue for paternity testing.
ABBAS says
I had DNA test with my son and my wife. The test result for my wife and my son is positive (He is my wife’s child) but for me is negative (He isn’t my child). My son is 9 years old now. 10 years age I had problem (Depression) and I had electrical shock.
Can you let me know electrical shock or using Lithium pills have effect to my test result please?
HomeDNA Identigene says
Hi, Abbas. Neither of those would affect your test results.
Sarah says
Hi,
I need to know how necessary it is to have the Mother’s DNA when the two alleged fathers (also brothers) agreed to submit their DNA.
My main reason is because I don’t have enough swabs. The kit says to use 4 swabs per person and it only comes with 12 swabs total, but I need another 4 to test the mother. I swabbed the 2 possible fathers and the child.
Help?
HomeDNA Identigene says
Hi, Sarah. As mentioned on the back of the box, at the top, the kit is designed to test one alleged father with one child + the mother. Hence the three packets of swabs. Testing an additional alleged father requires a whole other lab fee. The easiest thing for you to do is to contact us directly to set up your test: 800-329-7519.
Ana says
My ex-husband may be the father of a boy with another woman. He had a DNA test done with swabs from himself and the boy, and the result was inconclusive. The boy’s mother will not provide a DNA sample. Would it increase the chances of a conclusive result if my two children were also tested? My ex-husband is definitely the biological father of my daughter and son. Would a sample from me also be useful? I think it is important that this testing be done, so we know for sure if the boy is a half sibling to my children or is unrelated. How much would this DNA testing cost and what are the chances of a conclusive result?
HomeDNA Identigene says
Hi, Ana. It’s a little bit of a mystery to me why a paternity test would be inconclusive, since the science is so good now. That being said, the scenario you described for additional testing is also an option. Because of the amount of analysis involved, a family reconstruction test starts at $450. You’re welcome to contact our parent company, DDC, directly for more info at 800-681-7162 (M-F, 8:30 am to 5:30 pm Eastern).
Fatai says
I just did DNA paternity test this year 2 times with my new born baby boy and the result show 0%.
No body have sex with my wife except only me and I believe he is my son because he resemble me so much and people saying it too that we both look alike so much.
What should I do again?
HomeDNA Identigene says
Hi, Fatai. Two separate tests show the same thing. Physical characteristics are never proof of paternity, since whether or not someone “looks like” someone else is so subjective. If you’re sure the samples submitted were for you and the baby, you can trust results.
Johnny says
received DNA results between mother, child and possible father, why is it that results between the mother and potential father are more related than the results between the father and child or mother and child? If they are truly mother and child, they would match at every genetic location (barring the existence of a mutation).
HomeDNA Identigene says
Hi, Johnny. That is a complete coincidence. Just by virtue of being humans with 99.9% of the same DNA, we’re bound to “match” someone we’re not related to at several locations. You and I probably match at a bunch of locations, but it doesn’t mean we’re related. What doesn’t make sense to me is that you imply the child and mother don’t match at all genetic markers?
Gillian says
If the Father is deceased, but the Father has a son and a granddaughter from another one of His Son’s,. The son does not want to be tested. Can the test be done between the granddaughter and the possible child whose paternity needs to be verified?
HomeDNA Identigene says
Hi, Gillian. Testing a man with the daughter of his half-brother can be tricky. They may not share enough genetic data to get conclusive results.
ann says
If ONLY a maternal grandmother is tested with a grandchild – (absent mother, father and grandfather) – and results indicate grandmother is not the grandmother – can results be trusted? What is the probability of the test being false negative?
Another IMPORTANT piece of info is that the GRANDFATHER is a potential father – SO, would the “grandfather” be tested anyway, along with grandmother in this case? Would the test determine if he was the grandfather or father in this scenario (grandparent test) or just probability of him being grandfather?
If the grandmother was really the grandmother – wouldn’t it show regardless of having mom, dad or grandfather’s DNA?
HomeDNA Identigene says
Hi, Ann. The conclusiveness of a single-grandparent test is greatly optimized if the mother of the child also participates. If there was an actual exclusion given though (as opposed to inconclusive results), that’s pretty definitive. A DNA test answers the question the customer requests to be answered. So if the grandfather tested to see if he’s a grandparent, that’s the answer that will be given. If the grandfather tested to see if he’s the father, that’s the answer that will be given. With all these possibilities of relationship, it’s extremely important that you make the lab aware of them. If you do a double-grandparent test, for example, you must let the lab know ahead of time that the grandfather is a possible father. This way, the lab can take this into account when doing their analysis and perform additional testing, if necessary.
Ikhlaq says
I have applied for visa but they asked for the DNA of my daughter and me… We both are in different countries… Is it important for my daughter to come to my country for DNA…???
PLEASE DO ANSWER ME… AS SOON AS POSSIBLE
HomeDNA Identigene says
Ikhlaq. You don’t mention what country you are in, but you should contact an immigration attorney where you live for help.
Terri says
My Father who raised me & I suspect is my biological Father is deceased. My biological Mother is as well and all other family members are decease except my cousins that I grew up with on my Fathers side of family. My Fathers brothers children is all that remain. I’m wanting to find out if it’s possible to test those cousins. They would be first cousins in other words if truly related. And what type of test should be used & what would I ask for? DNA or Paternity etc?
Thank you,
Terri A.
HomeDNA Identigene says
Hi, Terri. The type of testing we do is for direct possible relatives and wouldn’t work in your case. I suggest you start with an ancestry DNA service that makes possible connections with more distant relatives.
Sharmaine says
If the mother and child was included in dna results but the allegly father get tested and isnt the father but u only had that one man could dna results may have been tampered with
HomeDNA Identigene says
Hi, Sharmaine. If you did an at-home test and didn’t witness the father do his own swabs, there’s always a chance he may have committed fraud.
S says
alleged father and son did a paternity test
results came back as 0%. mom was not tested in the exam.However, there are many blanks for # in the chart. Is there a reason why?
we think he is the father. should we test the mom, alleged dad and child again
HomeDNA Identigene says
Hi, S. With an exclusion (0% probability of paternity), adding the mother to the test won’t make a difference. Those blanks in the genetic data are just duplicate alleles at a particular locus. For example, if at one genetic location you see only a single 15 on the chart, that means it’s really 15/15.