title: Genetic variation of influenza A viruses as studied by recombinant DNA techniques.
mesh_terms: D001483:Base Sequence; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D004279:DNA, Viral / Q000235:genetics; D015252:Deoxyribonucleases, Type II Site-Specific; D004720:Endonucleases; D005814:Genes, Viral; D014644:Genetic Variation; D009980:Influenza A virus / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics; D012367:RNA, Viral / Q000235:genetics; D015719:Single-Strand Specific DNA and RNA Endonucleases; D014158:Transcription, Genetic
chemical_list: D004274:DNA, Recombinant; D004279:DNA, Viral; D012333:RNA, Messenger; D012367:RNA, Viral; D004720:Endonucleases; D004262:DNA Restriction Enzymes; C024388:CTGCAG-specific type II deoxyribonucleases; D015252:Deoxyribonucleases, Type II Site-Specific; D015719:Single-Strand Specific DNA and RNA Endonucleases