You wish to determine if a male child is the descendant of your grandfather.However,your grandfather is only known to have had daughters.The best strategy is to

Question

Quizplus · Accepted Answer

The Y chromosome is passed from father to son, so comparing the child's Y chromosome with the Y chromosome of your grandfather's brother (assuming the brother shares the same Y chromosome as your grandfather) would be the best strategy to determine a male descendant from a paternal line.

You Wish to Determine If a Male Child Is the Descendant