title: Evolutionary variants of simian virus 40.
mesh_terms: D001483:Base Sequence; D005075:Biological Evolution; D004279:DNA, Viral / Q000032:analysis / Q000096:biosynthesis; D005814:Genes, Viral; D005816:Genetic Complementation Test; D014644:Genetic Variation; D009154:Mutation; D009693:Nucleic Acid Hybridization; D011995:Recombination, Genetic; D013539:Simian virus 40 / Q000235:genetics* / Q000254:growth & development
chemical_list: D004279:DNA, Viral