Flashcard Set Preview
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| 1 |
Gene Pool
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Combined genetic information of all the members of a particular populations.
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Relative Frequency
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Number of times an allele occurs in a gene pool compared with the number of times other alleles...
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Sinlge-gene Trait
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Trait controlled by a single gene.
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Polygenic Trait
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Trait controlled by two or more genes.
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Directional Selection
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Form of natural selection in which the entire curve moves.
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Stabilizing Selection
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Form of natural selection in which the center of the curve remains in its current position.
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Disruptive Selection
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Form of selection in which a single curve splits into two.
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Genetic Drift
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Random change in allele frequencies that occurs in small populations.
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Founder Effect
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Change in the allele frequencies as a result of the migration of a small subgroup of a population.
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Hardy-Weinberg Principle
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Principle that allele frequencies in a population will ramain constant unless one or more factors...
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Genetic Equilibrium
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Situation in which allele frequecies remain constant.
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Speciation
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Formation of new species.
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Reproduction Isolation
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Seperation of species or populations so that they cannot interbreed and produce fertile offspring.
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Behavioral Isolation
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Form of reproduction isolation in which two populations have different in courtship rituals...
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Geographic Isolation
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Form of reproduction isolation in which two populations are seperated physically by geographic...
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Temporal Isolation
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Form of reproduction isolation in which two populations reproduce at different times.
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