title: Three complementation subgroups in group IV RNA phago SP.
mesh_terms: D000956:Antigens, Viral; D002213:Capsid / Q000096:biosynthesis; D003090:Coliphages / Q000145:classification* / Q000254:growth & development; D005796:Genes; D005816:Genetic Complementation Test; D009154:Mutation; D012328:RNA Viruses / Q000145:classification* / Q000254:growth & development; D012367:RNA, Viral / Q000096:biosynthesis; D012324:RNA-Dependent RNA Polymerase / Q000096:biosynthesis; D014764:Viral Proteins / Q000096:biosynthesis
chemical_list: D000956:Antigens, Viral; D012367:RNA, Viral; D014764:Viral Proteins; D012324:RNA-Dependent RNA Polymerase