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Lecture 8 - The Expression of Variation: Reaction Norms

Lecture 8 - The Expression of Variation: Reaction Norms

This video was recorded at EEB 122 - Principles of Evolution, Ecology and Behavior. Reaction norms depict the range of phenotypes a single genotype can produce, depending on the environment. Reaction norms must fit within an organism's phylogenetic constraints. They can differ for different individuals within a population, but some traits differ very little based on the environment; some do not differ at all. Reading assignment: Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 7

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