If you’re trying to determine someone’s biological father (or mother) and the suspected parent is unwilling or unable to be tested, you may be able to test grandparents for a “probability of grandparentage.”

Grandparent testing may also be used to confirm a biological family relationship between a child and extended family, as long as the legal guardian of the child gives consent for the test (if they’re a minor).

A single grandparentage test can be performed if only one grandparent is available for testing. The mother must be included in this test.

How does a grandparent DNA test work?

The way DNA works is you inherit one half of your DNA from your biological mother, and the other half from your biological father. Your mother and father also received their DNA in the same way, so their biological parents will carry the same genes that trickled down, and testing them can confirm biological relationships.

All of us carry a quarter of our genes – 25% – from our grandparents. That’s why although it’s not as strong as a paternity test or maternity test, a grandparent test can still look for DNA matches and offer a probability of biological relationships.

You do not have to be local for us to perform your DNA testing. We can arrange collections across the United States. Once all samples have been collected and sent in, results should come within 5-6 days.

What Needs to be Collected?

To run this test, we will need to collect samples from:

  • Mother
  • One Child
  • Both Paternal Parents of the Alleged Father

It’s important to note:  for a test to be used as defensible evidence or for any legal situation, the test must be collected, analyzed and reported by us – no do-it-yourself DNA kits will hold up in court because identities are not verified and proper collection procedures cannot be documented

We only use  AABB-accredited labs, which means we uphold the highest standards in DNA lab testing.  

To get started, contact us.