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Lecture

Lecture/ Chapter 6 Study Notes

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Department
Biology
Course
BIO120H1
Professor
Benjamin Wright
Semester
Fall

Description
Lecture 6 Natural Selection Key Concepts Terms: Artificial selection Heavy-metal tolerance Stabilizing Crop mimicry Directional and disruptive selection Herbicide resistant weeds Industrial melanism Heterostyly 1) Types of Selection: Artificial vs. natural, Modes of selection 2) Examples of selection: Evolution by pollution, Evolution in agriculture Number One: Natural selection can be defined as the differential survival and reproduction of genotypes in response to factors in the environment. It can only occur when genotypes differ in fitness. Fitness is measured by genotypes rate of increase relative to other genotypes in a population. Artificial selection is sometimes used as a mo
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