title: The origin of 7 S RNA in virions of avian sarcoma viruses.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000032:analysis* / Q000254:growth & development; D001483:Base Sequence; D002642:Chick Embryo; D046508:Culture Techniques; D004372:Ducks; D005347:Fibroblasts / Q000032:analysis*; D009841:Oligonucleotides / Q000032:analysis; D012313:RNA / Q000032:analysis*; D012367:RNA, Viral / Q000032:analysis*; D012260:Ribonucleases / Q000378:metabolism; D014779:Virus Replication
chemical_list: D009841:Oligonucleotides; D012367:RNA, Viral; D012313:RNA; D012260:Ribonucleases