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Lecture 6 - The Origin and Maintenance of Genetic Variation

This video was recorded at EEB 122 - Principles of Evolution, Ecology and Behavior. Mutations are the origin of genetic diversity. Mutations introduce new traits, while selection eliminates most of the reproductively unsuccessful traits. Sexual recombination of alleles can also account for much of the genetic diversity in sexual species. In some instances, population size can affect diversity and rates of evolution and fixation, but in other cases population size does not matter. Reading assignment: Stearns, Stephen C. and Rolf Hoekstra. Evolution: An Introduction, chapter 5

Keywords:: videolectures, ocwc, oec

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Science and Technology / Biology / Genetics

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Material Type:: Presentation
Date Added to MERLOT:: February 10, 2015
Date Modified in MERLOT:: November 11, 2020
Author:: Stephen C. Stearns, Department of Ecology and Evolutionary Biology, Yale University
Submitter:: The Open Education Consortium
Primary Audience:: College General Ed, College Lower Division, College Upper Division
Technical Format:: Video

Mobile Compatibility:: Not specified at this time
Language:: English
Cost Involved:: No
Source Code Available:: No
Accessibility Information Available:: Unknown
Creative Commons:: This work is licensed under a Attribution-NonCommercial-NoDerivs 3.0 United States