stion 21 of 30 Sapling Learning Map Imagine a population of beetles. White beetl

Question

stion 21 of 30 Sapling Learning Map Imagine a population of beetles. White beetles are easier for birds to see and eat. Black beetles blend into their surroundings, so they are less visible to birds than white beetles are. As a result, black beetles are more likely to survive and reproduce, enabling the gene for black coloration to bep generation. This increases the frequency of genes for black coloration in the population assed on to the next Which of the following evolutionary processes does this scenario describe? O migration O genetic drift O natural selection O mutation el View the hint by clicking on the bar. Click on the divider bar again to hide the hint

Explanation / Answer

Genetic drift: Genetic drift is defined as change in the allele frequency in a population from generation to generation that occurs due to chance events. There is a change due to "sampling error" in selecting the alleles for the next generation from the gene pool of the current generation. Though it occur in all sizes, the effect seen is stronger in small population. It may result in the loss of some alleles and the fixation, or rise to 100% frequency, of other alleles.

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