title: 2 cell-free systems for the assay of virus-specific polymerase.
mesh_terms: D000818:Animals; D001103:Arboviruses / Q000201:enzymology*; D002474:Cell-Free System; D002499:Centrifugation, Density Gradient; D002642:Chick Embryo / Q000166:cytology; D004683:Encephalomyelitis, Equine / Q000382:microbiology; D005347:Fibroblasts / Q000382:microbiology; D006150:Guanine Nucleotides / Q000378:metabolism; D012316:RNA Nucleotidyltransferases / Q000378:metabolism*; D012367:RNA, Viral / Q000096:biosynthesis*; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D006150:Guanine Nucleotides; D012367:RNA, Viral; D014316:Tritium; D012316:RNA Nucleotidyltransferases; D014529:Uridine