A, Immunoblots of control RPE1 cells and cells depleted for Chk2 using Chk2 siRNA stained using anti-Chk2 antibody and anti-actin antibody as a loading control. B, Chromosome mis-segregation in control RPE1 cells and cells depleted for Chk2 using Chk2 siRNA in the presence or absence of Doxorubicin. Bars represent mean, n = 150 cells, 3 experiments, **, p