title: An electrophoretic method for the detection of replicating, supercoiled simian virus 40 DNA.
mesh_terms: D004261:DNA Replication; D004278:DNA, Superhelical / Q000032:analysis / Q000096:biosynthesis*; D004279:DNA, Viral / Q000032:analysis / Q000096:biosynthesis*; D004587:Electrophoresis, Agar Gel; D008722:Methods; D013539:Simian virus 40 / Q000378:metabolism*; D014779:Virus Replication
chemical_list: D004278:DNA, Superhelical; D004279:DNA, Viral