X-linked characteristics are more common in males than in females because

Question

Quizplus · Accepted Answer

Males only have one copy of the X chromosome, which they receive from their mother. If a male inherits a recessive allele on the X chromosome, he will express that trait because he has no second X chromosome to provide a normal gene to counteract the abnormal one. Females, on the other hand, have two X chromosomes, so if they inherit one recessive allele, they still have a chance to inherit a dominant allele on the other X chromosome that can mask the recessive trait.

X-Linked Characteristics Are More Common in Males Than in Females