A recessive allele can only appear in the phenotype of an individual
A) in the F1 generation.
B) exposed to certain environmental conditions.
C) who carries the mutation in his or her gametes.
D) who is homozygous for the mutation.

Question

Quizplus · Accepted Answer

A recessive allele will only be expressed in an individual's phenotype if they are homozygous for the mutation, meaning they have two copies of the recessive allele. In a heterozygous individual, the dominant allele masks the expression of the recessive allele. Environmental conditions or carrying the mutation in gametes do not necessarily result in the expression of a recessive allele in an individual's phenotype.

A Recessive Allele Can Only Appear in the Phenotype of an Individual