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16 Cards in this Set
- Front
- Back
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What is a gene pool?
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The different alleles in a population.
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What is a relative frequency?
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The number of an organism in a population.
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What is a single-gene trait?
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Two or three phenotypes.
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What is a polygenic trait?
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Have many possible genotypes.
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What is a directional selection?
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An individual at one end of the curve having higher fitness.
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What is a stabilizing selection?
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When the animal near the center of the bell curve has an higher fitness.
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What is a disruptive selection?
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The average type have a harder time surviving and reproducing.
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What is a genetic drift?
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A random change in the frequency of the alleles in a gene pool.
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What is a founder effect?
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A change in allele frequency that results from a small group.
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What is a Hardy-Weinberg principle?
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That all alleles frequencies in a population will stay in genetic equilibrium unless something causes them to change.
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What is a genetic equilibrium?
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When every organism aren't different and they're equally matched.
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What is a speciation?
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The formation of a new specie.
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What is a reproductive isolation?
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The mix of a organism, and the youngling grows up with different genes.
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What is a behavioral isolation?
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Two interbreeding populations developing different behaviors.
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What is a geographical isolation?
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Seperated by a barrier, such as a river, mountain, or ocean.
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What is a temporal isolation?
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Populations that live in the same habitat reproduce at different times.
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