title: Genetic alterations of the rII B cistron polypeptide of phage T4.
mesh_terms: D002247:Carbon Isotopes; D002498:Centrifugation; D002848:Chromatography, DEAE-Cellulose; D002874:Chromosome Mapping; D003090:Coliphages; D005815:Genetic Code; D005827:Genetics, Microbial; D009154:Mutation; D010455:Peptides / Q000302:isolation & purification; D011995:Recombination, Genetic; D014316:Tritium; D014364:Tryptophan; D014764:Viral Proteins / Q000302:isolation & purification
chemical_list: D002247:Carbon Isotopes; D010455:Peptides; D014764:Viral Proteins; D014316:Tritium; D014364:Tryptophan