LIFE SCIENCE

Detailed explanation-1: -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-2: -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-3: -Typically, genetic drift occurs in small populations, where infrequently-occurring alleles face a greater chance of being lost.

Detailed explanation-4: -Genetic drift leads to fixation of alleles or genotypes in populations. Drift increases the inbreeding coefficient and increases homozygosity as a result of removing alleles. Drift is probably common in populations that undergo regular cycles of extinction and recolonization.

Detailed explanation-5: -Environmental effects Again, smaller populations are more likely to become extinct due to these environmentally generated population fluctuations than the large populations. The environment can also introduce beneficial traits to a small population that promote its persistence.