Part1-Chapter4.0-4.3

Part Ⅰ: The Present: Foundation for the Past
Chapter Ⅳ: Genes and Their Evolution: Population Genetics
4.0: Big Questions ---- 00:00
4.1: Demes, Reproductive Isolation, and Species ---- 05:10
4.2: Hardy-Weinberg Law: Testing the Conditions of Genetic Equilibrium ---- 09:37
4.3: Mutation: The Only Source of New Alleles ---- 14:11