A fairly large population of sparrows has a much greater than expected proportion of heterozygotes at many loci.Which explanation is most plausible?
A) Mating preference for individuals of different genotypes
B) Mating preferences for individuals of the same genotypes
C) A strong population bottleneck
D) Genetic drift
E) Mutation

Question

Quizplus · Accepted Answer

Mating preference for individuals of different genotypes (disassortative mating) can increase the proportion of heterozygotes in a population, as it encourages breeding between genetically diverse individuals.

A Fairly Large Population of Sparrows Has a Much Greater