Problem:
Question 1: How can migration influence the frequency of alleles in a population? (Think of the model of migration to an island from the mainland. What happens to the island's allele frequencies over time due to migration from the mainland population?)
Question 2: If you detect a deviation in genotype frequencies from that expected by the Hardy-Weinberg relation, what possible explanations should you consider for the differences?
Question 3: Under what conditions will natural selection cause evolutionary change in one situation and no evolutionary change in another?
Question 4: What are some of the genetic mechanisms leading to new genetic variation?
Provide a brief explanation for your answer.