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AnewtypeofDNAmimictermedPNA(PeptideNtlcleicAcid).wasfirstpreparedbyNielsenela/’intileearly1990s.ItisanoligonucleotideanalogueinwhichtheentiredeoxyribosephosphatebackbonehasbeenreplacedbyachemicallycompletelydilTerent.butstructurallyhomomorphousachira...