Variation in Phenotypic Expression Involves Both Expressivity and Penetrance

Multiple Choice

Variation in phenotypic expression involves both expressivity and penetrance. Penetrance is

A) the degree to which an allele is expressed individually.
B) the degree to which an allele is dominant.
C) a measure of recombination.
D) the proportion of individuals carrying the allele that show a phenotypic effect.
E) the proportion of the individuals carrying the allele.