a-grandparentage-test-is-used-to-determine-whether-a-grandmother-or-grandfather-is-the-true-biological-grandparent-of-a-child-1 Published November 4, 2016 at 300 × 450 in a-grandparentage-test-is-used-to-determine-whether-a-grandmother-or-grandfather-is-the-true-biological-grandparent-of-a-child-1 A grandparentage test is used to determine whether a grandmother or grandfather is the true biological grandparent of a child. ← Previous Next →