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Charles Yanofsky (b.1925), US geneticist. Yanofsky graduated in chemistry at New York, then moved to Yale to study and research microbiology. Yanofsky's main contribution was in developing experimental methods to study the way DNA works. He used mutant strains of a bacterium, mapping the mutation sites and comparing these with the amino acid sequences from the enzymes produced by the strains. From this it was possible to deduce that the DNA base sequence codes for protein synthesis.
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