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Stabilizing selection that maintains a genetic disease in a population because heterozygotes resist an infectious disease |
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Changes in the prevalence of a characteristic that reflects differential survival of individuals better adapted to a particular environment |
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A population in which two extreme expressions of a trait are equally adaptive |
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Genetic drift when small groups found new settlements, partition a subset of the original population's genes |
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Definition
A change in a gene pool due to the random loss or addition of alleles through migration |
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All the genes in a population |
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Changes in gene frequencies caused by separation of a small group from a larger population |
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Collection of deleterious alleles in a population |
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Hardy-Weinberg Equilibrium |
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Definition
Maintenance of the proportion of genotypes in a population from one generation to the next |
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Definition
A type of genetic drift. An event kills many members of a population, and a small number of individuals restore its numbers, restricting the gene pool |
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When extreme phenotypes are less adaptive than an intermediate phenotype |
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