A mutant of bacteriophage T7 deficient in polynucleotide ligase.

Bacteriolysis Carbon Isotopes Centrifugation, Density Gradient Coliphages/drug effects,enzymology,growth & development,radiation effects DNA Replication DNA, Bacterial/biosynthesis DNA, Viral/analysis,biosynthesis Edetic Acid/pharmacology Enzyme Induction Escherichia coli/drug effects,metabolism Genes Genetic Code Genetics, Microbial Hydrogen-Ion Concentration Hydroxylamines/pharmacology Ligases/metabolism Muramidase/pharmacology Mutagens/pharmacology Mutation Osmolar Concentration Phosphorus Isotopes Polynucleotides Radiation Dosage Radiation Effects Thymidine/metabolism Time Factors Ultraviolet Rays

Carbon Isotopes DNA, Bacterial DNA, Viral Hydroxylamines Mutagens Phosphorus Isotopes Polynucleotides Edetic Acid Muramidase Ligases Thymidine