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Java Games: Flashcards, matching, concentration, and word search. |
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11.3 Other Mechanisms of Evolution
Natural selection is not the only mechanism through which populations evolve.
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| gene flow | physical movement of alleles from one population to another |
| genetic drift | change in allele frequencies due to chance alone, occurring most commonly in small populations |
| bottleneck effect | genetic drift that results from an event that drastically reduces the size of a population |
| founder effect | genetic drift that occurs after a small number of individuals colonize a new area |
| sexual selection | selection in which certain traits enhance mating success; traits are, therefore, passed on to offspring |
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BVNW |
Blue Valley Northwest High School |
| Overland Park, KS |
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