bio101 lecture 3 - FROM SO SIMPLE A BEGINNING. CHEMISTRY...

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1 “FROM SO SIMPLE A BEGINNING. ..” CHEMISTRY AND THE ORIGIN OF LIFE Lecture 03 Cole Gilbert August 29, 2007 Intro Meeting Thurs, Aug 30 th At 4:30pm Meet in front of Rockefeller Hall Refreshments Provided Email [email protected] or [email protected] for more info or check out the Ithaca Free Clinic Initiative group on Facebook! “FROM SO SIMPLE A BEGINNING. ..” CHEMISTRY AND THE ORIGIN OF LIFE Lecture 03 Cole Gilbert August 29, 2007 In the beginning God created the heaven and the earth. Genesis 1:1 Who painted this painting ? A. Da Vinci B. Caravaggio C. Michelangelo D. Titian E. Modigliani
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2 Any Scientific Theory of Origin. . By nature, speculative. Must be consistent with the laws of chemistry and physics. Must explain:. The process by which the first “living molecules” could appear. The reason why this process does not operate now, but did once. How a molecule could replicate itself (the first “replicator”). How a molecule could evolve, including 9 origin of variation 9 natural selection Stars and planets being formed. Photo of Orion Nebula from Hubble Telescope Where we’re going 1. Dating the early Earth 2. Experiments in creating life 3. The RNA World Rocks older than 2.5 billion years (by) inferred actual Acasta gneiss 4.03 by Isua sediments 3.8 by Jack Hills zircons 4.4 by Earth’s oldest rocks Zircon crystals from sediments in west-central Australia. Uranium-Lead dating:
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This note was uploaded on 09/07/2008 for the course BIO G 102 taught by Professor Walcott during the Spring '08 term at Cornell University (Engineering School).

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bio101 lecture 3 - FROM SO SIMPLE A BEGINNING. CHEMISTRY...

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