Paternity Test With A Grandparent

Paternity Test With A Grandparent

What Is A DNA Grandparent Test?

A grandparent paternity test is frequently employed when the alleged father cannot or refuses to undergo a paternity test. At least one of the alleged father’s biological parents provides their DNA for comparison with the presumed grandchild. This testing can serve legal purposes. More commonly, it is done using a home DNA grandparent test kit. The results establish whether their son is the biological father of a child.

Biological parents equally contribute 50% of their DNA to each of their children. This mean the child’s genetic DNA profile will show one-half of their DNA coming from each biological parent. When that child becomes a parent, they in turn contribute half of their DNA to their child. This means that 25% of the grandchild’s DNA comes from each grandparent, through their biological child.

Deciding Who Will Be Tested In A Paternity Test With A Grandparent

Many times both grandparents, and even the child’s mother, will want to be included in a paternity test using grandparents. However, there are many reasons that the other grandparent, or the mother, is not available to test. Using one grandparent for testing means that there is less genetic material to compare with the child.

We have taken that into consideration when determining the best way to obtain the answer needed from this DNA test. Our company insists on using a minimum of 24 genetic markers for the testing. This is instead of a a standard 16 marker test. These additional markers allow us to deliver the strongest result.

We mentioned prior that there are two categories of paternity test with a grandparent: legally admissible and private (at home) tests. The results you receive from our private home DNA testing will show the same results as our court admissible test, but does not include the legally necessary chain of custody proving the identity of each person testing. 

Adding the mother’s DNA sample is recommended on this type of genetic testing, if possible. This will allow us to eliminate her DNA contributed to the possible grandchild. If the mother’s sample is not available, or you do not wish to include it for privacy reasons, we can still do the testing, and will adjust our process for only a grandparent(s) and grandchild.

Is There A Difference Between Companies The Offer A Grandparent DNA Test?

A DNA test may well be the most important test you will ever take. We are committed to providing the highest quality, and most accurate DNA testing, at the most affordable prices.

There are some companies advertising that they offer cheap grandparent DNA test prices. We want to encourage you to be careful when considering these companies. Cheap DNA tests may have a lot of hidden or surprise costs. For example: charging additional fees to test for markers that you may not need. They also may have very high cost for more than one DNA kit . A cheap DNA grandparent test will most likely cost you more when everything is done. They also often don’t have the resources and trustworthiness of established DNA testing companies like ours.

How Much Does A Paternity Test With A Grandparent Cost?

We don’t offer cheap DNA services. However, we do offer a very affordable grandparent DNA test. If fact we have not raised the price for our DNA testing in over five years, even though our costs have risen along with everything else. Our affordable prices have allowed us to process thousands of DNA samples every year for lawyers, physicians, adoption agencies, and private individuals.

Non-legal grandparent test prices are often offered at a cost of $200 to $500 for non-legal testing. We do not know of any reason for such a high cost for this testing to the consumer. It just doesn’t cost that much for the lab processing to do the testing to charge that much. All of our testing is done in our partner AABB accredited lab. We test the highest number of genetic markers, and we guaranteed the results are accurate. This is all done for a fraction of the cost of other labs. E

Your choices are outlined in the fee schedule below:

Number of People Testing
One Grandparent, One Child – $129.00
One Grandparent, Mother, One Child – $129.00
Each Additional Grandparent – $100.00
Each Additional Child – $75.00
Non-standard Sample (per sample) – $100

How Accurate Is A Paternity Test With A Grandparent?

A paternity test is called an “exclusionary” DNA test. This means that the result provides a yes or no answer to the question if a man is the father. Grandparent DNA tests, don’t test the father and child directly. Therefore, the results show the probability that the relationship exists. This probability is expressed on the DNA results report as a percentage. This percentage ranges from 0% to 99.99%+.

Testing for this type of biological relationship is based on the statistical probability that two or more people are related by bloodlines as grandparent and grandchild. The industry standard for testing is 16 alleles (aka genetic markers) in an attempt to arrive at a conclusion of whether a grandparent/grandchild relationship can be verified. The challenges and limitations with this standard is that when using so few genetic markers, it is very difficult to arrive at a conclusive result. This is because a grandparent only shares up to 25% of the same DNA with their suspected grandchild. All humanity shares 99.9% of the same DNA, which means that only .10% can be used to confirm or deny the relationship.

How Our Paternity Test With A Grandparent Is Different

When only 16 markers are being considered, there is a very good possibility that an inconclusive result will be reported. Even worse, a false negative or false positive is also a potential outcome. We strongly believe that there are just not enough genetic DNA markers tested in a standard test to feel confident about the results.

This is why our DNA testing uses up to 50% more alleles than other companies. The DNA sample of the mother can be included at no additional charge. The results we provide to you, which shows the probability of that the grandparent and grandchild are biologically related, as stated on the report, is 100% accurate. The testing process that is used for our DNA samples is the exact sample process, and the same results, whether for a legal grandparent DNA test, or our at home grandparent DNA test.

Often, we are asked if the home test results can be used in court, since the results we show are the same. DNA test reports are unable to be submitted into evidence in court if they are not

  1. Tested and reported from an AABB accredited lab;
  2. Collected from an independent DNA collector completing a chain of custody to verify the identity of those being tested.

Our testing results fit both of these requirements, for all DNA test we perform.

In our grandparent DNA testing process, we begin with a base of 24 genetic markers. If we are not able to obtain a strong enough finding at that level we will automatically upgrade the number of markers being examined on your DNA samples, up to 46 markers if necessary, until the lab is satisfied that the strongest result has been obtained. Grandparent DNA test results are always reviewed by a Ph.D., who verifies the conclusion and signs the report.