Grandparentage DNA Test

A grandparentage DNA test is done in order to determine whether the tested grandparents are the true biological grandparents of the child. This type of test is done as an alternative method to a DNA paternity test due to the unavailability of the alleged father. We would normally recommend doing directly a father to son/daughter paternity DNA test where possible.

In a grandparentage test, we suggest testing the grandfather and grandmother if both are available for testing. If not, we can still carry out the DNA test using a DNA sample from a single grandparent. In additiona, if the test requires testing a grandfather and his male grandchild, we would recommend you do a Y chromosome test.

We also recommend sending in the mother’s DNA sample for testing to strengthen the result by establishing and eliminating which genes she has passed on to her child.

Grandparents will have genetic material in common with their grandchild/children handed down through their own children. The results will indicate if the tested grandparents are being biologically related to the child. If the grandparents results as an inclusion, then we can say that the untested alleged father is the likely the true biological father of the child (the grandchild of the grandparents).

homeDNAdirect UK offers the grandparentage DNA test starting from £269. One or both grandparents may take part in the test, the child’s mother, and one grandchild. Your results will be emailed to you within 5-7 working days. You may wish to order your test now.

You can return to our Relationship DNA testing page, and keep reading on the various tests we offer.