title: Polynucleotide chain lengths of rapidly labelled and ribosomal RNA of mammalian cells and E. coli.
mesh_terms: D002499:Centrifugation, Density Gradient; D004926:Escherichia coli; D006367:HeLa Cells; D008722:Methods; D008970:Molecular Weight; D011119:Polynucleotides / Q000032:analysis*; D012313:RNA / Q000032:analysis*; D012329:RNA, Bacterial / Q000032:analysis*; D012270:Ribosomes; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D011119:Polynucleotides; D012329:RNA, Bacterial; D014316:Tritium; D012313:RNA; D014529:Uridine