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Mechanisms that Increase Genetic Variation

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Published on Aug 7, 2011

034 - Mechanisms that Increase Genetic Variation

Paul Andersen describes mechanisms that increase the genetic variation within a population. He begins by discussing how horizontal transfer can move genetic material between bacteria. Transformation, transduction, and conjugation in bacteria are all included. He also explains how crossing over, random assortment, and random fertilization can maintain genetic variation i eukaryotes. He also explains how inbreeding can decrease the fitness of an individual.

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All of the images are licensed under creative commons and public domain licensing:
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version, Original uploader was Lec CRP1 at en wikipedia Later. English: The Ancestry of King en:Charles II of Spain (1661-1700), February 1, 2008. Transferred from en.wikipedia. http://commons.wikimedia.org/wiki/Fil....

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