title: Mutants with altered DNA-base composition.
mesh_terms: D000421:Alcaligenes; D001412:Bacillus subtilis; D001419:Bacteria; D055598:Chemical Phenomena; D002621:Chemistry; D004269:DNA, Bacterial / Q000032:analysis*; D004352:Drug Resistance, Microbial; D005417:Flavobacterium; D009154:Mutation; D009691:Nucleic Acid Denaturation; D009711:Nucleotides / Q000032:analysis; D011831:Radiation Genetics; D013210:Staphylococcus; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial; D009711:Nucleotides