title: Heterogeneous population of virus DNA in serially passaged Marek's disease virus preparation.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D002499:Centrifugation, Density Gradient; D002642:Chick Embryo; D004279:DNA, Viral / Q000032:analysis*; D008381:Herpesvirus 2, Gallid / Q000032:analysis* / Q000254:growth & development; D009693:Nucleic Acid Hybridization
chemical_list: D004279:DNA, Viral