title: Isolation of a fraction of Bacillus megaterium DNA enriched in "minus" sequences.
mesh_terms: D001395:Azotobacter / Q000201:enzymology; D001410:Bacillus megaterium; D002499:Centrifugation, Density Gradient; D004269:DNA, Bacterial / Q000032:analysis*; D006150:Guanine Nucleotides; D009691:Nucleic Acid Denaturation; D009713:Nucleotidyltransferases; D011119:Polynucleotides; D012329:RNA, Bacterial; D012270:Ribosomes; D014316:Tritium; D014500:Uracil Nucleotides
chemical_list: D004269:DNA, Bacterial; D006150:Guanine Nucleotides; D011119:Polynucleotides; D012329:RNA, Bacterial; D014500:Uracil Nucleotides; D014316:Tritium; D009713:Nucleotidyltransferases