Question: Approximately T generations ago, the two populations, A and B, separated. The genetic differentiation between the two populations is measured by FST, which has a value of 0.2, and each population has an effective population size of 25,000.
- If there is migration from Population B into Population C but no migration in the reverse direction, and no migration between any other populations, what would be the expected fixation index (FST) between Populations B and C?