title: The replication of the ring-shaped DNA of polyoma virus. II. Identification of molecules at various stages of replication.
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D002848:Chromatography, DEAE-Cellulose; D046508:Culture Techniques; D004261:DNA Replication; D004279:DNA, Viral / Q000096:biosynthesis*; D004622:Embryo, Mammalian; D006863:Hydrogen-Ion Concentration; D051379:Mice; D008854:Microscopy, Electron; D011120:Polyomavirus / Q000378:metabolism*; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014461:Ultracentrifugation
chemical_list: D004279:DNA, Viral; D014316:Tritium; D013936:Thymidine