Recessive X- Linked Traits Are More Likely to Be Expressed

Multiple Choice

Recessive X- linked traits are more likely to be expressed in a male fruit fly than a female fruit fly because

A) the male chromosome is more susceptible to mutations.
B) the male's phenotype results entirely from his single X- linked gene.
C) males are haploid.
D) the male chromosome is more fragile than the female chromosome.