Natural selection/Related Articles: Difference between revisions
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imported>Chris Day No edit summary |
imported>Kim van der Linde (Evolution for sure!) |
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Revision as of 10:48, 6 September 2007
- Adaptation [r]: Describes the event of a trait being selected by the mechanism of natural selection. [e]
- Evolution [r]: A change over time in the proportions of individual organisms differing genetically. [e]
- Genetic drift [r]: Describes how some alleles either increase or decrease in a population due to chance events. [e]
- Gene flow [r]: The movement of genetic alleles from one population to another. If there is a low gene flow between two populations they may become distinct species. [e]
- Mutation [r]: Changes to the DNA sequence that cause new genetic variation. [e]
- Speciation [r]: An event that produces two lineages that become separate species. [e]