The Y-linked trait of hairy ears has been passed down for many generations in a certain family. A hairy eared male in this family should definitely have:

Question

Quizplus · Accepted Answer

Since the trait is Y-linked, it is only passed down from father to son. Therefore, a hairy-eared male should have inherited the trait from his father, who would have inherited it from his father, making the grandfather on the father's side the most likely candidate to also have hairy ears.

The Y-Linked Trait of Hairy Ears Has Been Passed Down