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17.2 (Genetic Drift (The founder effect (when individuals colonize a new…
17.2
Genetic Drift
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Completely random and lacking g in pattern but causes allele to become more or less common in population
Bottleneck effect
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Change in allele frequencies following a dramatic reduction in the size of a population. Could sharply reduce a population's genetic diversity
The founder effect
when individuals colonize a new habitat therefore might start new gene pool with allele frequencies different from those of parent gene pool
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Natural Selection
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If more suitable to environment then will produce more offspring. Changes in allele frequency and changes in phenotype frequency
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