GEOLOGY

Detailed explanation-1: -Typically, genetic drift occurs in small populations, where infrequently occurring alleles face a greater chance of being lost. Once it begins, genetic drift will continue until the involved allele is either lost by a population or until it is the only allele present in a population at a particular locus.

Detailed explanation-2: -Small populations tend to lose genetic diversity more quickly than large populations due to stochastic sampling error (i.e., genetic drift). This is because some versions of a gene can be lost due to random chance, and this is more likely to occur when populations are small.

Detailed explanation-3: -Typically, genetic drift occurs in small populations, where infrequently-occurring alleles face a greater chance of being lost.

Detailed explanation-4: –Genetic drift operates in a small population because a small change in genes can have a high impact.-By genetic drift often the phenotype of this small population quickly becomes different from the parent population.

Detailed explanation-5: -Genetic drift is a random process that can lead to large changes in populations over a short period of time. Random drift is caused by recurring small population sizes, severe reductions in population size called “bottlenecks” and founder events where a new population starts from a small number of individuals.