Pyrimidine dimer excision in Escherichia coli strains deficient in exonucleases V and VII and in the 5' leads to 3' exonuclease of DNA polymerase I.

Pyrimidine dimer excision in Escherichia coli strains deficient in exonucleases V and VII and in the 5' leads to 3' exonuclease of DNA polymerase I.