Figure 4.
Dependence of the induction of DSBs, presented as % FAR, on Fpg concentration in V79-4 cells either un-irradiated (closed triangles) or irradiated by 20 Gy 60Co γ-radiation (closed squares). Lysis of cells in the FAR assay was performed with NaCl (see Materials and Methods). Error bars represent the SEMs calculated from at least three experiments.