Question

At the allele level, how does selection determine which alleles are passed to the next generation?

Options

• Based on the advantages they provide when expressed physically as phenotypes

• Based on whether alleles are inherited in a homozygous or heterozygous state

• Based on the chromosomal location of each allele

• Based on the rate at which alleles mutate within the gene pool

Answer 1

Selection determines exactly which alleles are passed to the next generation based on the advantages they provide when expressed physically (phenotypes). Only alleles that produce advantageous phenotypes are preferentially transmitted.