Question

Which of the following explains the difference between a carrier of a sex-linked disorder and a carrier of an autosomal disorder?

a)All children of a male autosomal carrier will express the disorder.

b)All carriers of autosomal disorders are females who do not express the disorder.

c)All carriers of sex-linked disorders are females who do not express the disorder.

d)All children of a female autosomal carrier will express the disorder.

Answer 1

The pedigree symbol used to represent a female carrier of a recessive X-linked trait is a half-filled circle. In the pedigree charts, a circle is used to present females while a square is used to present males. If a female has a trait, the circle is filled in. If a female is a carrier of a recessive X-linked trait, the circle is half-filled.

Step-by-step explanation:

Answer 2

The correct answer is c.all carriers of sex-linked disorders are females who do not express the disorder.