Red-green colorblindness is a sex-linked trait.A woman with normal color vision,whose father was colorblind,mates with a colorblind man.What chance do each of their sons have of being colorblind?

Question

Quizplus · Accepted Answer

Since red-green colorblindness is a sex-linked trait (typically linked to the X chromosome), and the woman has normal color vision but her father was colorblind, she must be a carrier (XcX). Mating with a colorblind man (XcY) means each son has a 50% chance of being colorblind (receiving the Xc from the mother and Y from the father).

Red-Green Colorblindness Is a Sex-Linked Trait