OBJECTIVE LIFE SCIENCE
EVOLUTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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only aquatic populations
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small populations
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large populations
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ony terrestial populations
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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.