Respuesta :

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Genetic drift is a random of sampling of alleles from the gene pool. if a chance of a  forest fire for example kills all but two of the population, the maximum number of alleles two the individuals at as a single gene would be 4, if both heterozygous for different alleles, all the other ones would be lost and the remaining alleles would increase in frequency.

Answer:

Genetic drift reduces the size of gene pool of the population.

Explanation:

Genetic drift is any chance event that results in changes in the allele frequency of a population. The event either fixes an allele on the particular locus or makes the population to lose that allele.

Hence, genetic drift changes the genetic frequency by removal of a particular allele or by fixing it in the gene pool. Both conditions lead to reduced genetic variations in the population. And since genetic drift reduces the size of the population, the gene pool of the population would also shrink due to loss of alleles from it.

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