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Your Inner Fish by Neil Shubin Chapter 9: Vision

http://smilingldsgirl.files.wordpress.com/2009/09/complex_eye_500.jpg. Your Inner Fish by Neil Shubin Chapter 9: Vision. Rebecca Saionz AP Bio – 9/13/10. What do humans and Old World monkeys have in common? . Detailed kind of color vision

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Your Inner Fish by Neil Shubin Chapter 9: Vision

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  1. http://smilingldsgirl.files.wordpress.com/2009/09/complex_eye_500.jpghttp://smilingldsgirl.files.wordpress.com/2009/09/complex_eye_500.jpg Your Inner Fish by Neil ShubinChapter 9: Vision Rebecca Saionz AP Bio – 9/13/10

  2. What do humans and Old World monkeys have in common? • Detailed kind of color vision • Three different kinds of light receptors, each attuned to a different kind of light • Other mammals only have two • Allows us to distinguish more colors http://http://pin.primate.wisc.edu/fs/sheets/images/510med.jpg

  3. What is the benefit of color vision? • This kind of color vision arose about 55 million years ago • Fossil evidence from this same time reveals changes in Earth’s flora • greater diversity of plants, likely with different colors http://upload.wikimedia.org/wikipedia/commons/1/1e/Cones_SMJ2_E.svg

  4. The Genes Responsible for Vision • The Drosophila eyeless gene The mouse Pax 6 gene • “Master control” for the development/formation of eyes • Mutation can cause ocular defects, producing creatures with small eyes or no eyes at all http://www.developmentalbiology.net/images/ectopic-eyes.jpg http://www.elconfidencial.com/fotos/salud/2008050267aniridiaDentro_20080503.jpg

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