Consider a mainland-island migration scenario where two alleles (A/a) are segregating and the initial observed frequencies of the A allele on the mainland and island are 0.7 and 0.4 respectively. (a, 5 pts) If after one generation of migration the frequency on the island changes to become 0.409, what is the migration rate? (b, 5 pts) Given this rate of migration, what would the island frequency of the "A" allele be 4 generations after the initial situation, i.e. fA = 0.5 on the island? (Note: provide all values to the nearest 0.0001)

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