Grandparentage DNA Testing
Grandparentage DNA tests involve comparing the genetic DNA of two or more individuals to determine the likelihood of a biological relationship with the tested child. This type of test indirectly establishes paternity by analyzing the alleged father’s parents’ DNA against a potential grandchild, especially useful when the alleged father is unavailable or unwilling for a paternity DNA test. We recommend using both grandparents to provide more accurate results, but if unavailable, one grandparent can be utilized. Including the mother’s DNA for free, if possible, enhances conclusiveness.
Is A Grandparent DNA Test Accurate?
A grandparent DNA test is 100% accurate and can be conducted with just one grandparent (preferably both). We strongly recommend involving the mother or known parent to enhance result conclusiveness. When the known parent participates, their inherited DNA is subtracted, isolating the DNA from the other parent in question. If both alleged grandparents participate, their profiles combine to reconstruct the father’s complete genetic profile, particularly useful when the child’s mother is not involved. For more conclusive answers, an extended analysis comparing up to 46 markers is also available in some instances.