title: The mutagenic effects of new purine and pyrimidine analogues on phage T 4 .
mesh_terms: D001375:Azaguanine / Q000494:pharmacology; D001976:Bromouracil / Q000494:pharmacology; D002470:Cell Survival / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D002713:Chlorine; D003090:Coliphages / Q000187:drug effects*; D004926:Escherichia coli; D006219:Halogens; D006859:Hydrogen; D015122:Mercaptopurine / Q000494:pharmacology; D009153:Mutagens / Q000494:pharmacology*; D009154:Mutation / Q000187:drug effects; D009963:Orotic Acid / Q000494:pharmacology; D011687:Purines / Q000494:pharmacology*; D011743:Pyrimidines / Q000494:pharmacology*
chemical_list: D006219:Halogens; D009153:Mutagens; D011687:Purines; D011743:Pyrimidines; D001976:Bromouracil; D002713:Chlorine; D009963:Orotic Acid; D006859:Hydrogen; D015122:Mercaptopurine; D001375:Azaguanine