7. For each of the following comparisons, indicate which of the two scenarios wo

Question

7. For each of the following comparisons, indicate which of the two scenarios would cause genetic drift to have a larger effect (assuming all else is equal). [You do not need to explain your answers for this question.] a. Small island population of flowers vs. large mainland population b. Seal population with strictly monogamous mating vs. population in which a few dominant males keep large harems c. Bird population with lots of available nesting sites vs. population in which the first arriving migrants get one of a few choice nesting spots d. Anchovy population that experiences dramatic fluctuations in population size following ENSO climate cycles vs. fisheries with much more stable population size

Explanation / Answer

Genetic drift refers to relative variation of genotype in a small population. The extent of genetic drift would be larger when the allelic frequency is less and population size is smaller.

a. Small island population of flowers.

b. Seal population with strictly monogamous mating.

c. Population in with first arriving migrants get one of a few choice nesting spots.

d. Fisheries with much more stable population size.

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