Which Statement Best Describes the Potential Effect of Genetic Drift

question 48

Multiple Choice

Which statement best describes the potential effect of genetic drift in the peripheral isolate model of allopatric speciation?

• A) Because the ancestral population is much smaller than the descendant populations, genetic drift can act strongly in the ancestral population.
• B) Because the ancestral population is much larger than the descendant populations, genetic drift can act strongly in the ancestral population.
• C) Because the descendant populations are relatively large in size, it is unlikely to see the effects of genetic drift.
• D) Because the descendant populations can be founded by a relatively small number of individuals, genetic drift is more likely to have strong effects in the descendant populations.

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