Because color blindness is an inherited trait carried on the X chromosome, it is more common in women because they have two X chromosomes.

Question

Quizplus · Accepted Answer

Color blindness is more common in men because they only have one X chromosome and the gene for color blindness is recessive, so it only takes one copy of the gene to affect color perception in men. Women have two X chromosomes, so they need two copies of the gene to be color blind. However, even though women are less likely to be color blind than men, they can still be carriers of the gene and pass it on to their children.

Because Color Blindness Is an Inherited Trait Carried on the X