2 10 10 Spontaneous - Georgia Tech School of Biology Origin...

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Georgia Tech School of Biology Spring 2010 Biology 1510 Origin of Life on Earth Spontaneous generation Greek philosophers to 19th Century Europe Steps in the origin of life Critical role of RNA Evolutionary milestones Three domains of life
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Georgia Tech School of Biology Spring 2010 Biology 1510 Spontaneous Generation – Early Views Anaximander (ca. 611-547 BCE) Living creatures form in water when acted on by sunlight. The original living organisms differed from those now extant, and humans originated from some kind of fish. Anaximenes (588-524 BCE) The sun’s action on a primordial terrestrial slime made of earth and water led to the formation of plants and animals Anaximander image: http://www.mlahanas.de/Greeks/Bios/Anaximander.html Anaximenes image: http://en.wikipedia.org/wiki/Image:Anaximenes.jpg
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Georgia Tech School of Biology Spring 2010 Biology 1510 Spontaneous Generation – Aristotle Aristotle (384-322 BCE) was the most prominent Greek naturalist. Described various types of spontaneous generation: Insects generated from dew falling on leaves Bivalves form spontaneously in mud or sand Some fish form like bivalves (i.e., from mud or sand) Image: http://www.philosophypages.com/ph/aris.htm
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Georgia Tech School of Biology Spring 2010 Biology 1510 Q: Who experimentally disproved the hypothesis that spoilage occurs from spontaneous generation of microbes? A. Lamarck
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This note was uploaded on 09/02/2010 for the course BIO 1510 taught by Professor Unknown during the Spring '07 term at Georgia Institute of Technology.

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2 10 10 Spontaneous - Georgia Tech School of Biology Origin...

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