title: Substitution mutation in bacteriophage lambda with new specificity for late gene expression.
mesh_terms: D002874:Chromosome Mapping; D003090:Coliphages / Q000254:growth & development*; D003433:Crosses, Genetic; D004267:DNA Viruses; D004279:DNA, Viral; D005796:Genes; D005809:Genes, Regulator; D008242:Lysogeny; D009154:Mutation; D009876:Operon; D011995:Recombination, Genetic; D014158:Transcription, Genetic; D014779:Virus Replication
chemical_list: D004279:DNA, Viral