title: Physical linkage between 5 s, 16 s and 23 s ribosomal RNA genes in Bacillus subtilis.
mesh_terms: D001412:Bacillus subtilis; D002499:Centrifugation, Density Gradient; D002876:Chromosomes, Bacterial; D004269:DNA, Bacterial / Q000302:isolation & purification; D005796:Genes; D006824:Hybridization, Genetic; D008956:Models, Chemical; D008967:Molecular Biology; D008970:Molecular Weight; D012329:RNA, Bacterial; D012270:Ribosomes
chemical_list: D004269:DNA, Bacterial; D012329:RNA, Bacterial