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Smallest unit of evolution, group of individuals of the same species that can interbreed and produce fertile offspring |
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Natural Selection Chooses Which Traits |
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Definition
Picks phenotypes, and indirectly adapts population by maintaining favorable genotype in the gene pool |
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Alleles that are not always seen |
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Change in allele frequency in population over generations |
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Chance events that alter allele frequency |
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Transfer of allele between population |
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Variation in alleles of gene, occurs both within and among population |
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Variation is because of....? |
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Phenotype, product of inherited genotype and environment influence |
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Random change in nucleotide |
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Different alleles in same pair of diploid cell. |
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The number of times an allele is present |
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Population that is not evoloving |
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Assumptions for Hardy-Weinberg Equilibrium |
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Definition
No mutation, no natural selection, no gene flow (population is not infinitely large), no random mating, no genetic drift |
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Few individuals are isolated from a larger population |
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Drastic size reduction by chance |
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Movement in/out of population |
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Contribution an individual makes to the next generation relative to others |
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Male and females are different |
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Same sex fight for the girl, males choice |
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No adaptive value of one genotype over the other |
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