A dominant allele is
A) an allele that expresses its phenotypic effect even when it is present with a recessive allele.
B) an allele whose presence can be hidden.
C) only present in males.
D) only present in females.
E) always present in homozygous individuals.

Question

Quizplus · Accepted Answer

A dominant allele is one that is expressed even when only one copy is present in a heterozygous individual. It masks the presence of a recessive allele. So, option A is the correct answer.

A Dominant Allele Is