title: Studies of opal mutations in bacteriophage T4B.
mesh_terms: D001483:Base Sequence; D002874:Chromosome Mapping; D003090:Coliphages / Q000032:analysis / Q000187:drug effects; D004267:DNA Viruses; D006898:Hydroxylamines / Q000494:pharmacology; D008558:Melphalan / Q000494:pharmacology; D009154:Mutation; D009573:Nitrites / Q000494:pharmacology; D009711:Nucleotides / Q000032:analysis*; D011119:Polynucleotides; D013489:Suppression, Genetic
chemical_list: D006898:Hydroxylamines; D009573:Nitrites; D009711:Nucleotides; D011119:Polynucleotides; D008558:Melphalan