Unformatted text preview: contribution to the gene pool, of the next generation than do those less "fit". Natural selection is the process of differential survival and reproduction that inevitably leads to changes in allele frequencies over time as those individuals who are the most "fit" survive and leave more offspring. There are three patterns, or types, of natural selection. Stabilizing Selection Stabilizing selection favors the intermediate phenotype out of a range of phenotypes. The extremes in variation are selected against. Infants weighing significantly less or more than 7.5 pounds have higher rates of infant mortality. Selection works against both extremes....
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- Fall '10
- Biology, better adapted individuals, 7.5 pounds