Sex-linked traits can be expressed in
A) males only.
B) females only.
C) either males or females.
D) carriers only.

Question

Quizplus · Accepted Answer

Sex-linked traits are those that are carried on the sex chromosomes, X and Y. Traits carried on the X chromosome will be expressed in males if they inherit the X chromosome with the trait, as they only have one X chromosome. Females have two X chromosomes, so they can be carriers of sex-linked traits without expressing them. However, a female can express the trait if she inherits the trait on both of her X chromosomes. Therefore, sex-linked traits can be expressed in both males and females, but the frequency and expression of the trait may differ between the sexes.

Sex-Linked Traits Can Be Expressed in