title: A procedure for gene purification: the purification of the ribosomal RNA genes of Bacillus subtilis as DNA-RNA hybrids.
mesh_terms: D001412:Bacillus subtilis / Q000032:analysis*; D002499:Centrifugation, Density Gradient; D002845:Chromatography; D004269:DNA, Bacterial / Q000032:analysis* / Q000302:isolation & purification; D006824:Hybridization, Genetic; D008722:Methods; D008970:Molecular Weight; D012329:RNA, Bacterial / Q000302:isolation & purification*; D012270:Ribosomes / Q000032:analysis*
chemical_list: D004269:DNA, Bacterial; D012329:RNA, Bacterial