06+BIOL151X+S11+Life+on+Earth+Sakai

06+BIOL151X+S11+Life+on+Earth+Sakai - Millers hypothesis,...

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1 Miller’s hypothesis, based on Urey’s ideas about the early atmosphere, was that A. Inorganic molecules can form in a highly reducing atmosphere. B. Inorganic molecules can form in an oxidizing atmosphere. C. Organic molecules can form in an oxidizing atmosphere. D. Organic molecules can form in a highly reducing atmosphere. E. Early life formed in conditions identical to those simulated in Miller’s experiment.
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2 The origin of life on earth did not require the formation of: A. organic molecules such as nucleic acids B. larger macromolecules such as polypeptides C. the formation of early cell-like structures D. a hereditary mechanism E. oxygen in the atmosphere.
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3 The formation of liposomes under laboratory conditions shows that protobionts A. developed hereditary mechanisms and became the earliest life on earth. B. can form spontaneously. C. are more critical than ribozymes for life. D. can develop in a reducing atmosphere. E. build a lipid bilayer to isolate themselves from the external environment.
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4 06 History of Life on Earth Overall biological diversity Fossil record Earliest traces of life – Atmospheric O 2 Banded iron formations For a good overview of Earth history, see: Historical Geology Website (GPC)
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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 Tech.

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06+BIOL151X+S11+Life+on+Earth+Sakai - Millers hypothesis,...

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