Doublehelixlecture1-256s09.ppt", filename="Doublehelixlecture1-256s09.ppt", filename=

Doublehelixlecture1-256s09.ppt", filename="Doublehelixlecture1-256s09.ppt", filename=

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Watson and Crick Discovery of Double Helix 1953
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Quiz Name and date on top of page What is DNA? What is a protein? According to contemporary biology (after 1970), how are DNA and proteins related?
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Nucleic Acids vs. Proteins Proteins elements: carbon, hydrogen, oxygen, nitrogen, sulfur amino acids (strings called "polypeptides") protein: one or more polypeptide chain(s) Nucleic Acids elements: carbon, hydrogen, oxygen, nitrogen, phosphorous DNA deoxyribose sugar, phosphates, bases bases: A, T, G, C RNA ribose sugar, phosphates, bases bases: A, U, G, C DNA carries coded information in its sequence of bases for ordering amino acids in proteins
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Protein Synthesis DNA-->messenger RNA-->protein See animation on web page: http://www.philosophy.umd.edu/Faculty/L Darden/Research/index.html
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Philosophical Issue 1 Nature of scientific change Karl Popper: discovery is irrational a-ha Conjectures and refutations
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This note was uploaded on 04/05/2009 for the course PHIL phil256 taught by Professor Darden during the Spring '09 term at Maryland.

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Doublehelixlecture1-256s09.ppt", filename="Doublehelixlecture1-256s09.ppt", filename=

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