Maurice Wilkins, the biophysicist who died on October 5, 2004, at age 87, was the most reticent and least-known of the three researchers awarded the Nobel Prize in 1962 for the discovery of the double helix, the structural basis of DNA. Wilkins operated in the long shadows of James Watson and Francis Crick, the duo most associated with a discovery that many rank as the most significant, in any field of research, of the 20th century.

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