Michael is color-blind. His gene for color blindness is most likely a _____.
A) dominant gene on his X chromosome
B) dominant gene on his Y chromosome
C) recessive gene on his X chromosome
D) recessive gene on his Y chromosome

Question

Quizplus · Accepted Answer

Color blindness is caused by a recessive gene on the X chromosome. Since Michael is colorblind, it is likely that he inherited this gene from his mother, who would be a carrier of the trait on one of her X chromosomes. The Y chromosome does not carry the gene for color blindness.

Michael Is Color-Blind