ATARMAxxing · WACE Biology revision notes
Dynamic gene pools: mutation, natural selection, drift, founder effect and gene flow
Population genetics
What this note covers
- Gene pools and allele frequencies describe populations
- Mutation supplies new alleles without aiming at need
- Natural selection changes frequencies through differential reproduction
- Genetic drift is sampling change, strongest in small populations
- Founder effects and bottlenecks reshape a sample of diversity
- Gene flow connects populations and interacts with selection
6 sections · 10 key terms & formulas · 6 common mistakes
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