Mutation, gene pools, natural selection, gene flow and genetic drift

What this note covers

1. Mutation creates new genetic variants
2. A gene pool describes variation within a population
3. Natural selection changes allele frequencies
4. The environment changes the effect of an allele
5. Gene flow moves alleles between populations
6. Genetic drift changes frequencies by chance
7. Calculating allele frequencies without confusing individuals and alleles
8. Separating random sampling effects from a selective advantage

8 sections · 10 key terms & formulas · 6 common mistakes