title: [Frequency of occurrence of purine and pyrimidine sequences and nature of N6-methyladenine distribution in Escherichia coli C and phage DD 7 DNA].
mesh_terms: D000225:Adenine; D055598:Chemical Phenomena; D002621:Chemistry; D003090:Coliphages; D004269:DNA, Bacterial; D004279:DNA, Viral; D004926:Escherichia coli; D011687:Purines; D011743:Pyrimidines
chemical_list: D004269:DNA, Bacterial; D004279:DNA, Viral; D011687:Purines; D011743:Pyrimidines; D000225:Adenine
vernacular_title: Chastota vstrechaemosti purinovykh i pirimidinovykh posledovatel'nosteĭ i kharakter raspredeleniia N6-metiladenina v DNK Escherichia coli C i faga DD 7.