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15 Cards in this Set
- Front
- Back
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Gene Pool
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The combined alleles of all the individuals in a population
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Allele frequency
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A measure of how common an allele is in the populationle frequency
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Mutation
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A change in the DNA sequence; can introduce new alleles
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Recombination
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New allele combinations formed during meiosis
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Gene flow
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The movement of alleles from one population to another
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Lots of gene flow leads to...
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similar populations (genetically)
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Limited gene flow leads to...
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different populations; could evolve into different species
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Genetic drift
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Changes in allele frequencies due to chance alone
Small populations more likely to be affected |
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Bottleneck effect
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occurs after an event drastically reduces the size of a population
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Founder effect
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occurs after a small number of individuals colonize an area
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Sexual Selection
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Process in which certain traits increase mating success
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Intrasexual selection
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competition/fighting among males for females
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Intersexual
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males display certain traits to attract females
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Equilibrium
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state in which genotype frequencies in a population stay the same from generation to generation
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5 conditions required to be in equilibrium (not evolving)
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o Very large population
o No emigration or immigration o No mutations o Random mating o No natural selection |
