Who Is a "Carrier" of X-Linked Disorders,such as Hemophilia and Color

Multiple Choice

Who is a "carrier" of X-linked disorders,such as hemophilia and color blindness?

A) a person who has the X-linked disorder
B) a heterozygous female who is normal but carries one nonfunctioning allele
C) a homozygous female who carries the normal alleles
D) a male who carries the nonfunctioning allele
E) a male who carries the functioning allele