title: Murine sarcoma viruses: the helper-independence reported for a Moloney variant is unconfirmed; distinct strains differ in the size of their RNAs.
mesh_terms: D002460:Cell Line; D002471:Cell Transformation, Neoplastic; D004591:Electrophoresis, Polyacrylamide Gel; D005622:Friend murine leukemia virus / Q000032:analysis; D006378:Helper Viruses; D008970:Molecular Weight; D008979:Moloney murine leukemia virus / Q000032:analysis / Q000254:growth & development / Q000502:physiology*; D012367:RNA, Viral; D009053:Sarcoma Viruses, Murine / Q000032:analysis; D013045:Species Specificity
chemical_list: D012367:RNA, Viral