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Suppose the size of a population of marmots is 300.
-According to genetic drift theory,what is the probability that a newly arisen mutation will become fixed in this population?

Question

Quizplus · Accepted Answer

The formula for the probability of fixation of a newly arisen mutation is Pfix = 1/2N, where N is the population size. Substituting the given population size of 300, we get Pfix = 1/2(300) = 1/600. Simplifying the answer choices using this formula, we get: A) ¹/₁₀₀ = 1/1100 B) ¹/₃₀₀ = 1/1300 C) ¹/₆₀₀ = 1/1600 (correct choice) D) ¹/₁₂₀₀ = 1/11200 E) 1 (incorrect choice, as the probability of fixation is not always guaranteed to be 1)

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