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Genotype Expression

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Published on Dec 30, 2011

053 - Environmental Genotype Effects

Paul Andersen explains how genotypes can be expressed or not based on changes in the environment. He starts with a brief description of the Himalayan rabbit and how melanin production can be disrupted by high temperature. He explains how this could be advantageous in both the arctic fox and hare. He explains how flowers can vary temperature based on the pH of the soil. He finally describes gene expression in Lac+ bacteria.

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Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: http://www.freesound.org/people/Cosmi...
Creative Commons Atribution License

All of the images are licensed under creative commons and public domain licensing:
Algkalv. Terianniaq Qaqortaq (Arctic Fox), Photographed in Kulusuk, Greenland, February 22, 2010. Own work. http://commons.wikimedia.org/wiki/Fil....
Architetto--Coniglio, n.d. http://openclipart.org/detail/25631/a....
"File:Lac operon1.png." Wikipedia, the Free Encyclopedia. Accessed December 1, 2013. http://en.wikipedia.org/wiki/File:Lac....
"File:MacConkey Agar with LF and LF Colonies.jpg." Wikipedia, the Free Encyclopedia. Accessed April 7, 2014. http://en.wikipedia.org/wiki/File:Mac....
Ryckaert, Marc. Hydrangea Macrophylla, June 24, 2007. Own work. http://commons.wikimedia.org/wiki/Fil....
———. Hydrangea Macrophylla, June 24, 2007. Own work. http://commons.wikimedia.org/wiki/Fil....
Tille, Andreas. English: Arctic Fox in Summer (taken in Numedal Zoo), July 22, 2003. Own work. http://commons.wikimedia.org/wiki/Fil....

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