Q6.6. If gametes from a gene pool combine randomly to make only a small number o

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Q6.6. If gametes from a gene pool combine randomly to make only a small number of zygotes, the allele frequencies among the zygotes may be quite different than they are in the gene pool Why? O The effects of natural selection are more pronounced in small populations O Changes in allele frequencies over many generations are inevitable with sexual reproduction O Alleles combine more randomly with a small number of zygotes. O The effects of sampling error are more pronounced with smaller samples. Submit Q6.7. How is genetic drift different from natural selection? ONatural selection occurs because some alleles confer higher fitness, whereas genetic drift occurs because of sampling error. Natural selection has a stronger effect in large populations, whereas genetic drift acts primarily in small populations. O Natural selection is a mechanism of evolution, whereas genetic drift is not a mechanism but an outcome of evolution. Natural selection tends to cause very rapid evolution, whereas genetic drift tends to operate or

Explanation / Answer

Answer 6.7- (B) Natural selection has a strong effect on large populations, whereas enetic drift acts primarily in small pooulations.

Explanation- Genetic drift occurs in small populations, as alleles change over time and eventually results in two distinct groups. Fewer and fewer recessive traits are seen as a result in genetic drift .Natura selection occurs in a particular environment.Mutation of alleles is necessary for both to occur.

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