A Recessive Allele is One

Question

A recessive allele is one
A) whose effect is masked when paired with a dominant allele.
B) that produces no effect when present in the homozygous condition.
C) that must be lethal in the homozygous condition.
D) that appears only in a heterozygote.
E) that is not expressed as strongly as a dominant allele.

Accepted Answer

A recessive allele is one whose effect is masked by the presence of a dominant allele in a heterozygous pair. It is only expressed phenotypically when present in a homozygous condition.