Why are males more likely than females to have an X-linked disorder?
Males have two X chromosomes; thus, there is a greater chance of them inheriting a recessive allele.
O Males have only one X chromosome; thus, if a recessive allele is inherited, it is always expressed.
Males are unable to inherit the dominant allele for sex-linked traits.
O Males always express the recessive allele, even when a dominant allele is present.