A storm carried eight finches to a remote island, where they founded a new population. Years later, scientists found that the allele frequencies in the island population were very different from those in the large mainland population the birds had come from.
Explain why the allele frequencies in the island population differ from those in the mainland population.
[2]
The island population stayed small. Explain why Hardy-Weinberg equilibrium is unlikely to be maintained in a small population.
[2]