Consider a gene with two alleles, A1 and A2. If the fitness of A1A2 individuals is higher than the fitness of both A1A1 and A2A2, we are observing Blank______.Multiple choice question.heterozygote advantagenon-random matingoutbreedinginbreeding

Heterozygote advantage will maintain an allele that is deleterious when it is recessive Blank______Multiple choice question.in environmental conditions in which heterozygotes have the lowest fitnessin any combination of environmental conditions, regardless of the fitness of the heterozygotesin environmental conditions in which heterozygotes have the highest fitnessin environmental conditions in which heterozygotes have intermediate fitness

In the absence of selection, migration and gene flow between two populations will result in ________.Group of answer choicesassortative matinga genetic bottleneckinbreedingsimilar allele frequencies in the two populations

What can occur when the heterozygous genotype of a trait has a greater fitness than either of the homozygous genotypes?Multiple choice question.one beneficial allele becomes fixed in the populationharmful alleles are eliminated from the populationonly two beneficial alleles are maintained in a populationharmful alleles can be maintained in a population

The process, in which advantageous traits that are heritable become more common in successive generations, is called Blank______.Multiple choice question.genetic driftgene flownatural selectionrandom mating

A(n) ______ individual has 2 different alleles for a given gene.Multiple choice question.recessivehomozygousheterozygoustrue-breeding