Question

Imagine that two sub populations split from a common ancestral population 2,000 generations ago, with no subsequent migration between them. Assume that all populations (population 1, population 2, and the ancestral population) each have a size ofn=10,000 diploid individuals.

Answer 1

Answer:

Imagine that two sub populations split from a common ancestral population 2,000 generations ago, with no subsequent migration between them. Assume that all populations (population 1, population 2, and the ancestral population) each have a size ofN=10,000 diploid individuals.

(a) If you sample one chromosome from each of the two populations, what is the average time to the most recent common ancestor of these two chromosomes

(b) Follow the same setup as in part (a). If you sample two chromosomes from the same population, what is the average time to the most recent common ancestor of these two chromosomes?

(c) What is the expected value of FST under this model