Apart from DNA paternity tests, DNA tests may also be used to establish other family relationships, such as that of a child’s grandparents. In this article we are going to look at the subject of grandparent DNA tests, how they are done and what it involves.

A grandparent DNA test helps to confirm the relationship between a child and an alleged grandparent. This test is based on the fact that a child receives half its DNA from each parent and that parent in turn receives half its DNA from each of its parents. A portion of the grandparents DNA is therefore passed on to the child and it is this which can be tested to prove whether a child really is a grandchild or not.