title: Triplication of a unique genetic segment in a simian virus 40-like virus of human origin and evolution of new viral genomes.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D002874:Chromosome Mapping; D004261:DNA Replication; D004279:DNA, Viral / Q000302:isolation & purification; D004591:Electrophoresis, Polyacrylamide Gel; D004720:Endonucleases; D005838:Genotype; D008854:Microscopy, Electron; D008970:Molecular Weight; D010761:Phosphorus Radioisotopes; D013539:Simian virus 40 / Q000378:metabolism; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D004279:DNA, Viral; D010761:Phosphorus Radioisotopes; D014316:Tritium; D004720:Endonucleases; D013936:Thymidine