Molecular Structure of Nucleic Acids: A Structure for DNA
Watson and Crick: “We Had to Be There Just at That Particular Time”

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http://www.youtube.com/watch?v=OiiFVSvLfGE?rel=0

James Watson and Francis Crick discuss how they discovered the double-helix structure of DNA, and how they worked off each other to their mutual advantage. In 1953, Watson and Crick used Rosalind Franklin's idea of a helix and added a second dimension- a double helix in which the chains of nucleotides went opposite each other.

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