Genetic drift, bottleneck effect, and founder effect
10:47
Khan AcademySal Khan
Genetic drift, bottleneck effect, and founder effect
Evolution has multiple mechanisms, including genetic drift, which involves random changes in trait frequency. In particular, genetic drift is more likely in small populations. Examples include the bottleneck effect, where a disaster reduces population size, and the founder effect, where a small group starts a new population; both result in less ...
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PPT - Genetic Drift PowerPoint Presentation, free download - ID:2744068
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19 reactions | Genetic drift happens when chance events cause alleles to spike or decline from one generation to the next. Sometimes a segment of a population gets isolated and continues to grow and mutate on it's own. Sometimes populations change as a result of natural disasters or human intervention. https://youtu.be/mFvmY9JASO4 | CrashCourse | Facebook
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19 reactions | Genetic drift happens when chance events cause alleles to spike or decline from one generation to the next. Sometimes a segment of a population gets isolated and continues to grow and mutate on it's own. Sometimes populations change as a result of natural disasters or human intervention. https://youtu.be/mFvmY9JASO4 | CrashCourse | Facebook
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