The gene for color blindness is a recessive allele located on the X chromosome. If a color-blind man and a color-blind woman have one son and three daughters, how many will be color-blind?

Question

Quizplus · Accepted Answer

Since the gene for color blindness is a recessive allele located on the X chromosome, and both parents are color-blind, all their children will inherit the X chromosome with the color blindness allele from their mother and the son will inherit the Y chromosome from his father, making all children color-blind.

The Gene for Color Blindness Is a Recessive Allele Located