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Natural Selection and Genetic Drift

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(1)

Natural Selection and Genetic Drift

(2)

Natural Selection and Genetic Drift

(3)

Genetic Drift: The Founder Effect

(4)

Genetic Drift: The Bottleneck Effect

(5)

Effects of Genetic Drift: A Summary

(6)

Gene Flow: Immigration &

Emmigration

(7)

Concept 23.4: Natural selection is the only mechanism that

consistently causes adaptive

evolution

(8)

Natural Selection: Relative Fitness

(9)

Directional, Disruptive, and

Stabilizing Selection

(10)

The Key Role of Natural Selection in

Adaptive Evolution

(11)
(12)

Sexual Selection

(13)
(14)

The Preservation of Genetic

Variation

(15)
(16)

Neutral Variation

(17)

Why Natural Selection Cannot

Fashion Perfect Organisms

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