Most copies of rare recessive alleles exist in ____.
A) homozygotes
B) heterozygotes
C) females
D) males
E) males and females equally

Question

Quizplus · Accepted Answer

Most rare recessive alleles are found in heterozygotes because heterozygotes can carry a rare allele without expressing the associated phenotype, especially if the allele is recessive. This allows the allele to persist in the population more readily than if it were expressed in homozygotes, which might be selected against if the trait is disadvantageous.

Most Copies of Rare Recessive Alleles Exist in ____