title: Unnatural selection in chemical systems.
authors.affiliation: The Salk Institute for Biological Studies, San Diego, California 92186-5800, USA.
authors.forename: L E
authors.initials: LE
authors.lastname: Orgel
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000032:analysis / Q000737:chemistry / Q000235:genetics; D004261:DNA Replication; D010450:Endopeptidases / Q000032:analysis / Q000737:chemistry / Q000235:genetics; D019143:Evolution, Molecular; D008969:Molecular Sequence Data; D009841:Oligonucleotides / Q000032:analysis / Q000737:chemistry / Q000235:genetics; D000069497:Origin of Life; D011119:Polynucleotides / Q000032:analysis / Q000737:chemistry / Q000235:genetics; D012313:RNA / Q000032:analysis / Q000737:chemistry / Q000235:genetics; D016337:RNA, Catalytic / Q000737:chemistry; D012641:Selection, Genetic; D013698:Templates, Genetic
chemical_list: D009841:Oligonucleotides; D011119:Polynucleotides; D016337:RNA, Catalytic; D012313:RNA; D004247:DNA; D010450:Endopeptidases