title: Mutants of Rous sarcoma virus with extensive deletions of the viral genome.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000235:genetics* / Q000378:metabolism / Q000528:radiation effects; D002472:Cell Transformation, Viral; D002478:Cells, Cultured; D002642:Chick Embryo; D002999:Clone Cells; D004279:DNA, Viral / Q000096:biosynthesis* / Q000235:genetics; D005347:Fibroblasts; D005814:Genes, Viral; D009154:Mutation; D011784:Quail; D013045:Species Specificity; D014466:Ultraviolet Rays; D014779:Virus Replication
chemical_list: D004279:DNA, Viral