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13 Cards in this Set
- Front
- Back
natural selection
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differential survival and reproduction of individuals in a population
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evolution
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the change of allele frequencies in a population's gene pool over time
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population
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a group of organisms of the same species in the same area that share a common gene pool
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gene pool
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all the alleles at all the gene loci of all individuals in a population
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microevolution
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small scale changes in the genetic structure of a population from generation to generation
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hardy-weinberg theorem
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under certain conditions, the frequency of alleles in the population will remain the same from generation to generation
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genetic drift
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the effects of a small population size
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gene flow
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migration of individuals between 2 populations
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genetic fixation
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loss of all but one possible allele at a gene locus in a population
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bottleneck effect
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when a chance effect leads to a drastic reduction in population size
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founder effect
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when a group of individuals become separated from the larger parent population; the allelic frequencies in the gene pool may be different
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5 conditions for the hardy-weinberg theorem
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1. no natural selection
2. no mutation 3. no migration/emigration 4. large population size 5. mating must be random |
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hardy-weinberg equation
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p^2 + pq + q^2 = 1
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