DNA co-founder Francis Crick, July 28

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Nobel Prize-winning scientist Francis Crick, left, who with James Watson, right, discovered the spiral, ``double-helix'' structure of DNA, paving the way for everything from DNA blood tests to genetically engineered tomatoes, died on Wednesday, July 28, 2004, in San Diego. He was 88 and had... AP/Photo released by Thirteen/WNET in New York
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