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Date: 2005-04-22 19:39:45RNA Nucleotides Purines Abiogenesis Evolutionary biology Nucleoside Reverse-transcriptase inhibitor DNA Nucleic acid Genetics Biology Philosophy of biology | Proc. Natl. Acad. Sci. USA Vol. 84, pp[removed], July 1987 BiochemistryAdd to Reading ListSource URL: www.pnas.orgDownload Document from Source WebsiteFile Size: 967,37 KBShare Document on Facebook |