'Directional selection favors individuals' presentation slideshows

Evolutionary Change is Random

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Chapter 23

Chapter 23. The Evolution of Populations. Overview: The Smallest Unit of Evolution. Microevolution is a change in allele frequencies (gene pool) in a population over generations (time) One misconception is that organisms evolve, in the Darwinian sense, during their lifetimes

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Chapter 23

Chapter 23. The Evolution of Populations. Natural selection acts on individuals, but only populations evolve Genetic variations in populations contribute to evolution Microevolution - change in allele frequencies in a population over generations.

212 views • 21 slides