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Start Over You searched for: Subject Crystallography, X-Ray ✖ Remove constraint Subject: Crystallography, X-Ray Subject RNA ✖ Remove constraint Subject: RNA Story Section Defining the Genetic Coding Problem, 1954-1957 ✖ Remove constraint Story Section: Defining the Genetic Coding Problem, 1954-1957 Year 1954-01-14 ✖ Remove constraint Year: 1954-01-14