Question

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

All carriers of sex-linked disorders are females who do not express the disorder.
All carriers of autosomal disorders are females who do not express the disorder.
All children of a female autosomal carrier will express the disorder.
All children of a male autosomal carrier will express the disorder.

Answer 1

http://en.wikipedia.org/wiki/X-linked_dominant_inheritance

Answer 2

X-linked dominant traits do not necessarily affect males more than females (unlike X-linked recessive traits). The exact pattern of inheritance varies, depending on whether the father or the mother has the trait of interest. All daughters of an affected father will also be affected but none of his sons will be affected (unless the mother is also affected). In addition, the mother of an affected son is also affected (but not necessarily the other way round).

Answer 3

C