05+BIOL151X+S11+Origin+of+Life

05+BIOL151X+S11+Origin+of+Life - 05 Earth History &...

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What is life? Geologic time and when major forms arose Conditions for the origin of life
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What is Life? Typical definition: Features of living organisms:
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3 The Last Universal Common Ancestor is most closely related to extant A. Eukarya B. Archaea C. Bacteria D. A and B. E. A, B and C.
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4 Geological Time Scale 4.6
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Earth’s Oldest Rocks Valley, JW. 2005. A Cool Early Earth? Scientific American, October 2005, 58-
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6 Earth 3.5 Billion Years Ago Campbell & Reece 7th Edition, Fig. 26.01
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7 Steps in the Origin of Life 1. organic molecules form can occur spontaneously (Miller-Urey experiment) ex: amino acids, nitrogenous bases (part of DNA/RNA)
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8 Campbell & Reece 7th Edition, Fig. 26.02
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9 Revisted Miller’s experimental vials Rehydrated and reanalyzed his second expt Higher pressure hot water mist jet similar to water vapor-rich volcanic eruption Johnson et al. 2008 Science
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This note was uploaded on 05/01/2011 for the course BIOL 1510 taught by Professor Jungh.choi during the Spring '07 term at Georgia Institute of Technology.

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05+BIOL151X+S11+Origin+of+Life - 05 Earth History &...

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