Effect of mating on UV-induced DNA degradation in an Hfr recA strain of Escherichia coli

Summary Degradation of DNA occurs in a mated UV irradiated Hfr recA strain but at a rate less than when not mated. The difference in the amount of DNA degradation between mated and unmated UV irradiated Hfr recA can be accounted for by the net synthesis of DNA previously observed in the mated males.