There are three main patters of selection- directional selection, stabilizing selection, and disruptive selection. In addition, to the readings in your textbook, you will find useful info on this topic in the Encyclopedia of the Earth article on Evolution http://www.eoearth.org/article/Evolution.
Expected Learning Outcomes
By the end of this course, the fully engaged student should be able to
- distinguish between directional, stabilizing, and disruptive selection
- describes how directional. stabilizing, and disruptive selection work
- give examples of traits produced by each of these patterns of selection
- draw the graph that shows the relationship between fitness and trait size that produces each of these patterns of selection.
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