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Grandparent DNA Test 2019-01-16T07:13:47+00:00

Grandparent DNA Testing

Results delivered in ONE business day  $139.00

24 Genetic Markers Tested – 100% Accuracy


Most Accurate Grandparent DNA Test

Grandparent DNA Testing

When an alleged father (or mother) is not directly able to be tested, at least one of the suspected father’s (or mother’s) biological parents can perform a DNA grandparent test to help determine if he or she is the true father or mother of a child.

Biological parents equally contribute 50% to their child’s DNA, so that one-half of his DNA comes from each parent. When that child becomes a parent, they in turn contribute half of their DNA to their child. Therefore, 25% of the grandchild’s DNA comes from each grandparent, through their biological child.

How accurate is our Grandparent DNA test?

We guarantee we provide the most accurate DNA Grandparent test available.

Grandparent DNA testing is based on the statistical probability that two or more people are related by bloodlines as grandparent and grandchild. The industry standard for testing of this type compares 16 alleles to attempt to arrive at the conclusion if a grandparent/grandchild relationship exists.

The challenges and limitations with this approach is that when using so little genetic material, it is very difficult to arrive at a conclusive result 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 determine the answer as to whether or not a grandparent/grandchild relationship exists. 

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. Bio-Gene DNA holds the position that there are just not enough markers tested in a standard test to feel confident about the results.

Bio-Gene DNA uses up to 50% more alleles than other companies to perform the DNA testing. The DNA sample of the mother can be included at no additional charge.

More markers tested means a more accurate result. It’s a scientific fact.

There are times or reasons that the other grandparent, or the mother, is not available for the grandparent testing. This is why we insist on use 24 genetic markers for the testing, to deliver the strongest result. The results we provide for our informational testing is the same as our court admissible testing, just without the legal paperwork. Adding the mother’s DNA sample, if possible, will allow us to eliminate her contribution to the child and then focus only on the paternal contribution if trying to establish who the biological father is. There are some instances where the probability of relationship may be stronger if including the mother’s DNA sample. We do not charge for the mother’s sample if included at the time of the initial order.

 If the mother of the child is not available, or you do not wish to include her sample, we can still perform the testing between the grandparent(s) and the possible granchild. In these cases our testing lab makes a mathematical and scientific adjustment in the testing process which allows for only one grandparent and one grandchild being tested with results that are accurate, clear, and understandable in almost every case we handle.

Do you need to test someone who lives in another location? We can do that!

We can send DNA collection kits to multiple addresses for the same test. When ordering, just select how many kits you need (one per address is suggested). List the names and addresses we are shipping to on the order form. Each test kit will be coded with your unique case number and matched with both the name of the person and your case number in lab. Testing will begin once all samples have been received.

Fast results. One business day processing on all Grandparent DNA tests.

We know how important these answers are to you, and we want to help you learn the truth as quickly as possible. Rush processing is a service we perform on all of our Grandparent tests and results are delivered in ONE business day for no additional cost.

Alternative samples are not eligible for one day processing as a viability test must be performed prior to testing on any samples other than a mouth swab or blood card.

Grandparent DNA testing results

Results are provided in a PDF file through a secure login to the person ordering the test once they are ready. Testing results are always kept confidential and your DNA is never used for any other research purpose or provided to any other person, company, or government agency. Your private information will always remain private.

Grandparent Home DNA Test

How much does a Grandparent DNA test cost?

A DNA test may well be the most important test you will ever take. We guarantee the highest quality testing at the most affordable prices. We process thousands of DNA samples every year for lawyers, physicians, adoption agencies, and private individuals.

Your choices are outlined in the fee schedule below:

Number of People Testing Processing Time Cost
One Grandparent, One Child 1 Business Day $139
One Grandparent, Mother, One Child 1 Business Day $139
Each Additional Grandparent 1 Business Day $75
Each Additional Child 1 Business Day $100
Non-standard Sample (per sample) 1-3 Business Days $100

Often Asked Questions About Grandparent Testing

No, you do not need the mother’s DNA, however it may be helpful in some cases to eliminate her DNA from the child. This occurs in about 2% of grandparent cases. We do not charge for the mother’s DNA sample when it is submitted at the time of the testing. In the event her DNA is suggested, it can be added after the testing results if desired.

If both grandparents are available to test, you may wish to consider that option, as the testing results are no different than a paternity test using the suspected biological father.

When both grandparents, or the mother,  is not available our testing laboratory automatically adjusts the testing process to account for one grandparent and one child.

If you are seeking answers for personal information only, then the test can be done discreetly and privately between grandparent(s) and grandchild(ren) without any other person knowing.

If you are needing a legal DNA test then the custodial parent or legal guardian will need to give written consent.

Yes! Only the person who orders the test has access to the information. You have a private login name and password that only you know. We never discuss results with anyone else to ensure your privacy.
Yes! Alternate samples are very common to use when you want to have the testing run in a very discreet way. To learn more about Alternative Samples click HERE.

How to take a home Grandparent DNA test

The most accurate method of obtaining your DNA is to use a buccal swab, which is very similar to a “Q-tip” cotton swab. The swabs are rubbed on the inner cheeks of the mouth of those being tested. We provide all the materials needed for the DNA collection in our Bio-Gene DNA Test Kit.

However, we know that sometimes it is not possible to obtain a buccal swab sample. We are often able to test discreet alternative DNA samples. To learn more about non-standard, alternative DNA samples that we can test, CLICK HERE.

How to take a DNA test

Bio-Gene DNA Grandparent Home DNA Test Kits

Our at home testing, for private use, is performed using the exact same process and standards as our legally admissible testing. All testing is performed in AABB accredited testing laboratories. Using more markers than other testing companies allows us to provide you with a level of accuracy that simply cannot be matched by lower marker tests.

paternity test with a grandparent
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