title: Lethality of the Escherichia coli K12 cell doubly deficient in DNA polymerase I and DNA strand-joining activity.
mesh_terms: D002250:Carbon Radioisotopes; D002874:Chromosome Mapping; D003090:Coliphages; D003227:Conjugation, Genetic; D004254:DNA Nucleotidyltransferases; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000528:radiation effects*; D005796:Genes; D005804:Genes, Lethal; D005838:Genotype; D009154:Mutation; D010641:Phenotype; D011118:Polynucleotide Ligases; D011831:Radiation Genetics; D013941:Thymine; D013997:Time Factors; D014161:Transduction, Genetic; D014466:Ultraviolet Rays
chemical_list: D002250:Carbon Radioisotopes; D004269:DNA, Bacterial; D004254:DNA Nucleotidyltransferases; D011118:Polynucleotide Ligases; D013941:Thymine