Fig. 5.
Rat-1 sublines R2,2 and 1302 exposed to 1-hour pulses of increasing activity of 3HTdR (left) or increasing concentrations of ara-C (right). For each condition, the plateau of the dose-response curve was lower for 1302 cells than for R2,2 cells.P values were calculated by comparing the values for the 4 replicates at each exposure point.