In a genetic system of complete dominance,a recessive allele is expressed
A)only in the homozygous condition.
B)only in the heterozygous condition.
C)only when it is sex-linked.
D)only when it occurs on an autosome.
E)whenever it is present.

Question

Quizplus · Accepted Answer

In a genetic system of complete dominance, a recessive allele is only expressed when an individual carries two copies of the allele, which occurs in the homozygous condition. In the heterozygous condition, the dominant allele masks the expression of the recessive allele.

In a Genetic System of Complete Dominance,a Recessive Allele Is