title: A delection mutant of bacteriophage f1 containing no intact cistrons.
mesh_terms: D002874:Chromosome Mapping; D003090:Coliphages / Q000254:growth & development* / Q000276:immunology / Q000648:ultrastructure; D004267:DNA Viruses; D004279:DNA, Viral / Q000032:analysis; D003673:Defective Viruses / Q000254:growth & development* / Q000276:immunology / Q000648:ultrastructure; D000939:Epitopes; D005796:Genes; D009154:Mutation; D011995:Recombination, Genetic; D014762:Viral Interference
chemical_list: D004279:DNA, Viral; D000939:Epitopes