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Chapter 19

Chapter 19. Genetic Diversity in Populations. Chapter Outcomes:. Define a gene pool. Describe the gene pool of a population at genetic equilibrium. Summarize the five conditions upon which the Hardy-Weinberg principle is based.

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Agents that change gene frequencies

Agents that change gene frequencies. Natural Selection. Involves the environment selecting for/against certain phenotypes . Natural Selection. Involves the environment selecting for/against certain phenotypes

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Mechanisms of Evolution

Mechanisms of Evolution. Mechanisms of Evolution. There are several: Natural Selection Gene Flow Genetic drift Mutations Non-random mating. 1. Natural Selection:.

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Individuals in a population may evolve.

Individuals in a population may evolve. True False. False! Individuals do NOT evolve; POPULATIONS do!. Populations evolve, not individuals!. Natural selection acts on individuals. Some individuals are better adapted. Some individuals will bear more offspring than others.

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546 views • 16 slides

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Original gene pool - PowerPoint PPT Presentation

Chapter 19

Agents that change gene frequencies

Mechanisms of Evolution

Individuals in a population may evolve.