title: Superinfection immunity and prophage repression in phage P1. II. Mapping of the immunity-difference and ampicillin-resistance loci of P1 and phi amp.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D002874:Chromosome Mapping; D003090:Coliphages / Q000187:drug effects / Q000254:growth & development*; D003433:Crosses, Genetic; D004267:DNA Viruses; D004926:Escherichia coli; D005796:Genes; D005809:Genes, Regulator; D008040:Genetic Linkage; D010403:Penicillin Resistance; D012328:RNA Viruses; D012762:Shigella dysenteriae; D014762:Viral Interference
chemical_list: D000667:Ampicillin