Description
The Task:
1. Review the chapter(s) assigned this week.
2. Reflect on one of the following prompts - select only one (1).
A | Explain the effect of genetic bottlenecks on human and nonhuman species by presenting one example of each. |
B | Explain why genetic variation is necessary for the process of natural selection to operate and remember to identify the sources of genetic variation. |
Submissions should be 150+ words.
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Explanation & Answer
Attached.
Running head: GENETIC BOTTLENECKS ON HUMAN AND NONHUMAN SPECIES
Genetic Bottlenecks on Human and Nonhuman Species
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GENETIC BOTTLENECKS ON HUMAN AND NONHUMAN SPECIES
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Genetic Bottlenecks on Human and Nonhuman Species
A genetic bottleneck is a severe example of genetic drift and occurs when the population
size of both human and nonhuman species is reduced drastically (Li & Roossinck, 2004).
Genetic drift is the alteration in the frequencies of allele within a population from one generation
to the next that happens because of chance events. An exact look at genetic drift implies that
change occurs due to “sampling error” in the selection of alleles for the future generation from a
pool of genes of the present generation (Khan Academy, 2018). The genetic drift that is
responsible for genetic...