title: The relationship of visna, maedi and RNA tumor viruses as studied by molecular hybridization.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002474:Cell-Free System; D002499:Centrifugation, Density Gradient; D004279:DNA, Viral / Q000096:biosynthesis; D008324:Mammary Tumor Virus, Mouse / Q000032:analysis*; D009693:Nucleic Acid Hybridization; D012328:RNA Viruses / Q000032:analysis*; D012367:RNA, Viral / Q000032:analysis* / Q000302:isolation & purification; D012194:RNA-Directed DNA Polymerase / Q000378:metabolism; D011925:Rauscher Virus / Q000032:analysis*; D012756:Sheep / Q000382:microbiology; D014316:Tritium; D014790:Visna-maedi virus / Q000032:analysis* / Q000201:enzymology
chemical_list: D004279:DNA, Viral; D012367:RNA, Viral; D014316:Tritium; D012194:RNA-Directed DNA Polymerase