Why Do X-Linked Conditions Appear More Frequently in Males Than

Multiple Choice

Why do X-linked conditions appear more frequently in males than in females?

A) A male with a nonfunctioning allele on the X chromosome does not have another allele of that gene on the Y chromosome that could cover up the nonfunctioning one.
B) Males have no X chromosomes.
C) The Y chromosome carries many alleles that are recessive to alleles on the X chromosome.
D) Males are more likely to inherit an extra chromosome than females.
E) Females have no X chromosomes.