Why is color-blindness more common in males than in females?
A) Because females would have to receive one copy of the recessive color blindness gene to actually express the trait.
B) Because a male only needs to receive the recessive gene from his mother to be color-blind.
C) Because color-blindness is an Y-linked trait.
D) Females are hemizygous
E) Males are never hemizygous

Question

Quizplus · Accepted Answer

Color-blindness is an X-linked recessive trait, so males, having only one X chromosome, will express the trait if they inherit the recessive gene from their mother.

Why Is Color-Blindness More Common in Males Than in Females