BIO 200 Chapter Notes - Chapter 4.2: Sulfur Dioxide, Stanley Miller, Nicotinamide
6 Sep 2016
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Nucleic acids and the origin of life - chapter 4. 2. How and where did the small molecules of life originate. Cannot find biological molecules in inanimate matter unless they came from a once- living organism. Impossible to know for certain how life on earth began. Spontaneous generation of life from inanimate nature is not happening repeatedly before our eyes. During the european renaissance, most people thought that at least some forms of life arose repeatedly and directly from inanimate or decaying matter via spontaneous generation. Sweaty clothes in dim lighting mice. Francesco redi proposed that flies arose from other flies that laid eggs on the rotting meat. Experiment that involved rotten meat 3 jars: one open, one with the opening covered in fine cloth, one sealed with a lid. Found maggots, which hatched into flies, only in the open jar. Scientists believed that microscopic organisms arose spontaneously from their rich chemical environment via life force .
