title: Studies on amber suppressor tRNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D003090:Coliphages; D004261:DNA Replication; D004926:Escherichia coli / Q000378:metabolism; D005696:Galactosidases / Q000378:metabolism; D005796:Genes; D005815:Genetic Code; D009154:Mutation; D012333:RNA, Messenger; D012343:RNA, Transfer / Q000096:biosynthesis*; D014161:Transduction, Genetic; D014443:Tyrosine
chemical_list: D012333:RNA, Messenger; D014443:Tyrosine; D012343:RNA, Transfer; D005696:Galactosidases