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Sidney Altman is Sterling Professor of Biology and Professor of Chemistry at Yale University. A molecular biologist, his career has been concerned with nucleic acid biochemistry and the genetics of tRNA. Altman discovered, with Dr. Thomas Cech, that RNA (ribonucleic acid) in living cells is not only a molecule of heredity but can also function as a biocatalyst. This discovery won him the 1989 Nobel Prize in chemistry.
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