German castle, we follow the scientific surprises as DNA beat out protein, the more logical candidate, as the stuff of the gene. Joshua Lederberg pays tribute to the work of Oswald Avery, the Canadian-born scientist who first proved it was DNA and the impact this had on his own landmark discovery that bacteria have sex, ie exchange genetic material. Two sets of clues led to the discovery of the do…

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Discovering the Double Helix (Tapes & Videos)The structure of DNA proposed by James Watson and Francis Crick in 1953 was one of the most important scientific discoveries of the 20th century, tran... Read More >