Word: acidâ
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Using this clue as their Rosetta stone, Nirenberg and other researchers eventually found one or more three-letter code words, or codons, that could call up every single amino acid???plus other words that acted as punctuation, marking the start or completion of a message ordering the production of a protein. Even more remarkable, they learned that the code was universal: the same four letters, taken three at a time to form a single genetic word, code the same amino acids in all living things. Thus by the mid-1960s, scientists finally understood how DNA passes on genetic information with...
...Yale. Two discoveries have so far come of this research: that in living matter the only substances sensitive to light are sugars?fats, oils and proteins are all unaffected by it; that one of the symptoms of tuberculosis is the appearance in the body of a certain fatty acid???a discovery which should enable the disease to be detected in its very early stages...
Nitric Acid. Chemists Guy B. Taylor and T. A. Chilton of E. I. duPont de Nemours & Co. urged U. S. manufacturers to speed their adoption of the European method of making nitric acid??? from ammonia, one pound of which will replace five pounds of Chilean nitrate...
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