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| a08d000 | It is one of the striking generalizations of biochemistry--which surprisingly is hardly ever mentioned in the biochemical text-books--that the twenty amino acids and the four bases, are, with minor reservations, the same throughout Nature. As far as I am aware the presently accepted set of twenty amino acids was first drawn up by | nature science gamow george-gamow generalizations nobel-laureate james-d-watson james-watson watson striking | Francis Crick |