23-Oct25-OriginOfLife - 1 Chemical evolu4on in the early...

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10/25/13’ 1’ 10/25/13’ 1.’Chemical’evolu4on’in’the’early’earth’ ’ -’Miller-Urey’experiments’ ’ -’How’did’cells,’energy’transforma4on,’ ’’ and’informa4on’molecules’evolve?’ 2.’Prokaryote’diversity’and’the’Oxygen’Revolu4on’ We’will’be’answering’ques4ons’on’Handout’9’as’ we’go’today.’ DNA’module’and’homework’ques4ons’(due’ Tuesday’night)’will’be’posted.’ Handout 9. LEARNING OUTCOMES The first living cells originated by chemical evolution in the pre-biotic earth. 1. Develop hypotheses about how molecular interactions under early earth conditions could have led to the formation of ancestral cells, and consider possible experiments to test these hypotheses. 2. Predict properties of a biological molecule that would make it an ideal candidate to be the first molecule of heredity in the pre-biotic world. 3. Identify evidence that supports the scientific theory that life on earth had a common ancestor. How did life originate on earth? (just your opinion) A. Supernatural powers created it as it exists now. B. Simple bacteria came on meteors and then evolved. C. Extraterrestrial aliens brought it to Roswell and spread it.
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23-Oct25-OriginOfLife - 1 Chemical evolu4on in the early...

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