A male is always homozygous for a trait that is
A) codominant.
B) X-linked.
C) autosomal.
D) dominant.
E) dihybrid.

Question

Quizplus · Accepted Answer

A male is always homozygous for X-linked traits because males have only one X chromosome. Any gene located on the X chromosome will be expressed in males, whether it is recessive or dominant, because there is no corresponding allele on the Y chromosome to potentially mask its expression.

A Male Is Always Homozygous for a Trait That Is