Key differences, features, and comparative analysis of Factor and Effect.
| Factor | Effect |
|---|---|
| Gene migration (gene flow) | Alleles move in/out with migrating individuals |
| Genetic drift | Random change in allele frequency (strong in small populations); the founder effect is a case of drift |
| Mutation | Source of new alleles |
| Genetic recombination | New allele combinations |
| Natural selection | Non-random survival/reproduction |
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