title: Relationship between molecular length and biological activity of SV40 DNA.
mesh_terms: D000818:Animals; D002460:Cell Line; D002467:Cell Nucleus / Q000382:microbiology; D002499:Centrifugation, Density Gradient; D004261:DNA Replication; D004279:DNA, Viral / Q000032:analysis* / Q000302:isolation & purification; D000882:Haplorhini; D007668:Kidney; D008854:Microscopy, Electron; D008967:Molecular Biology; D013539:Simian virus 40 / Q000032:analysis / Q000472:pathogenicity*
chemical_list: D004279:DNA, Viral