Suppose that global warming causes ocean rise that obliterates most of the Gulf Coast of Florida and much of its human population, and that radiation leaking from the destroyed Big Bend Nuclear Power Station causes a mutation that yields green hair in humans with the homozygous recessive mutant allele. Many years pass and a new island appears in the Gulf. This island is then colonized by an intrepid human population that is fixed for the recessive green hair allele. If the island population grows to 10,000 individuals and then a new mutation arises once in the population, with a single individual becoming heterozygous for the green hair locus, a) What is the probability that this non-green hair allele will reach fixation by genetic drift? (Assume no selection or additional mutation at this locus). b) What is the average time to fixation of this new non-green allele?

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Suppose that global warming causes ocean rise that obliterates most of the Gulf Coast of Florida and much of its human population, and that radiation leaking from the destroyed Big Bend Nuclear Power Station causes a mutation that yields green hair in humans with the homozygous recessive mutant allele. Many years pass and a new island appears in the Gulf. This island is then colonized by an intrepid human population that is fixed for the recessive green hair allele.

If the island population grows to 10,000 individuals and then a new mutation arises once in the population, with a single individual becoming heterozygous for the green hair locus,

a) What is the probability that this non-green hair allele will reach fixation by genetic drift? (Assume no selection or additional mutation at this locus).

b) What is the average time to fixation of this new non-green allele?

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