title: P2 phage amber mutants: characterization by use of a polarity suppressor.
mesh_terms: D002874:Chromosome Mapping; D003090:Coliphages / Q000254:growth & development / Q000378:metabolism / Q000528:radiation effects; D003433:Crosses, Genetic; D004926:Escherichia coli; D005815:Genetic Code; D005816:Genetic Complementation Test; D005827:Genetics, Microbial; D009154:Mutation; D011830:Radiation Effects; D011995:Recombination, Genetic; D013489:Suppression, Genetic; D013696:Temperature; D014466:Ultraviolet Rays; D014764:Viral Proteins / Q000096:biosynthesis; D014779:Virus Replication
chemical_list: D014764:Viral Proteins