Fig. 5. Treatment of S2 cells DmCdc6 double-stranded RNA causes a large number of cells to stain with antiphospho H3 antibody. Cells either treated with Cdc6 double-stranded RNA (Cdc6 RNAi) or untreated (Ctrl)were stained for tubulin (green) phospho H3 (red) and DNA (blue). The DNA and phospho H3 costaining appears purple.