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- genetic drift
- natural selection
- gene flow
- mutation
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- Changes in gene frequencies from generation to generation as a result of random (chance) processes.
- most pronounced in a small population
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- survival of the fittest
- mechanism of evolutino proposed by Charles Darwin.
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- Exchange of genes between different species (an extreme case referred to as hybridization) or between different populations of the same species caused by migration followed by breeding.
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