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10 Cards in this Set
- Front
- Back
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a change in organisms over time (descendants are slightly different from ancestors)
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evolution
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a type of geneti drift that occurs when only a small number of individuals from a population are present at the establishment (founding) of a new population
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founder effect
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the percentage of one allele out of all alleles for that particular gene in a population
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gene frequency
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exchange of genes by migration between population
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gene flow
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the total number of alleles for a specific gene in a population
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gene pool
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random changes in gene frequency due to sampling error
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genetic drift
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the condition in which all assumptions of the hardy-weinberg law are met and gene frequencies do not change over time
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genetic equilibrium
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gene frequencies do not change over time as a consequence of genetic recombinations during sexual reproduction (provided certain critical assumptions are met)
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hardy-weinberg law
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non-random and differential survival of individuals in a population due to favorable conditions in the survivors
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natural selection
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a type of genetic drift in which population size is sharply reduced due to some catastrophic event
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population bottleneck
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