title: Ultraviolet mutagenesis in strains of E. coli deficient in DNA polymerase.
mesh_terms: D004254:DNA Nucleotidyltransferases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology / Q000378:metabolism / Q000528:radiation effects*; D005827:Genetics, Microbial; D006639:Histidine / Q000378:metabolism; D008954:Models, Biological; D009154:Mutation; D011831:Radiation Genetics; D011995:Recombination, Genetic; D014364:Tryptophan / Q000378:metabolism; D014466:Ultraviolet Rays
chemical_list: D006639:Histidine; D014364:Tryptophan; D004254:DNA Nucleotidyltransferases