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The top documents tagged [small number of allelesless]
AP Biology 2007-2008 Evolutionary Forces What changes populations?
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Geographic Isolation How about taking a swim in this gene pool??
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IT’S ALL GENETIC…. Get my drift? Founder effect When a new population is started by only a few individuals some rare alleles may be at high frequency;
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AP Biology Evolution Unit What is Evolution? Change in the genetic makeup of a population over time. Fitness – those with favorable variations for survival
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Forces of evolutionary change Natural selection – traits that improve survival or reproduction accumulate in the population ADAPTIVE change (survival
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Mechanisms for Evolution
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