Assume that a human population consists of 6,000 reproducing females and 4,000 r

Question

Assume that a human population consists of 6,000 reproducing females and 4,000 reproducing males. (a) What is the effective population size on the autosomes? What is the expected time (in generations) for a pair of autosomes to coalesce? (b) What is the effective population size on the Y- chromosome? What is the expected time (in generations) for a pair of Y chromosomes to reach their most recent common ancestor?

I used the effective population size formula Ne= (4NmNf)/(Nm+Nf) and found the answer for part a to be 9600 , the generation time is twice the population size so it is 19200. Please explain how you got the population size on the y chromosome.

Explanation / Answer

Assume that a human population consists of 6,000 reproducing females and 4,000 r

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