Reasons to take this test

Usually this test is taken when there is a doubt regarding the paternity of a child. Often it is the grand parents who initiate the test as they would doubt that their son is the biological father of their grandchild. Whilst a grandparents test could offer very accurate results, if you want to achieve the most accurate results possible you should aim to test DNA samples for the alleged father and child in a paternity DNA test.

Information about grandparent DNA testing

To maximise accuracy, we recommend testing both grandmother and grandfather in a duo grandparentage test. This DNA test is usually done because the paternity of a person is brought into question but the alleged father of that person is not available for the test. A duo grandparentage test makes it possible for us to map the missing, alleged father’s DNA profile.

Genetic inheritance patterns make it possible to reconstruct the father’s DNA profile by using his parents’ DNA. Scientists will then compare the DNA profile derived to the grandchild’s DNA profile and calculate the statistical probability of the tested grandparents being the biological grandparents of the child.

If only a single grandparent is available, we do not recommend a single grandparent to grandchild DNA test.

Are you just males taking part?

If the answer to this question is “Yes” (the testing involves solely grandfather and grandson) and you want to know if the individuals tested share any common paternal ancestor or relative, the perfect test for your needs is the Y chromosome test.

My grandparent test results

Grandparents testing works in the following way:  The results will show a probability that the grandparents are the biological grandparents of the grandchild. The higher the probability, the more conclusive the result is.


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