Question

Why are sex-linked disorders

more common in males?
A. Sex-linked disorders are more common in
females.
B. Males only need to inherit one copy of the
allele.
C. Sex-linked disorders are dominant.

Answer 1

Answer: B

Explanation: Men only have to inherit one copy of the disorder in order to have it since they’re XY and females are XX. With females, they could get another dominate trait to prevent them from having the disorder (they would then be a carrier) but with males there’s not any way to block it out.

Answer 2

Answer: B

Step-by-step explanation:

Sex linked disorders are on the X chromosome and males have only 1

It is less common in females because they have 2 X chromosomes