Problem:
Question 1: According to Darwin's Principles, what pre-conditions are required if a population is to evolve by natural selection?
Question 2: What was Darwin's model for heredity, and how did it weaken his argument that natural selection was the only adequate explanation for adaptation?
Question 3: What are the possible explanations for the existence of several different alleles in a population? (e.g., why hasn't one been fixed and the other gone extinct?).
Question 4: 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 5: 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?
Could someone help to explain the answer of these questions.