Two or more alleles of a gene present at relatively high frequencies in a population's gene pool is known as ____.
A) disruptive selection
B) sexual dimorphism
C) directional selection
D) stabilizing selection
E) balanced polymorphism

Question

Two or more alleles of a gene present at relatively high frequencies in a population's gene pool is known as ____.  
A) disruptive selection
B) sexual dimorphism
C) directional selection
D) stabilizing selection
E) balanced polymorphism

Quizplus · Accepted Answer

The definition given matches with the concept of balanced polymorphism, where multiple alleles of a gene are maintained at relatively high frequencies in a population's gene pool. Disruptive, directional, and stabilizing selection are different modes of natural selection acting on populations. Sexual dimorphism refers to the differences in appearance between males and females of the same species. None of these terms specifically refers to the maintenance of multiple alleles of a gene at high frequencies in a population.

Two or More Alleles of a Gene Present at Relatively