Fig. 2From: The Small GTPase Rac Suppresses Apoptosis Caused by Serum Deprivation in FibroblastsTUNEL assay. Phase-contrast micrographs of (A) control cells, (B) Rac1N17 cells, and (C) Rac1V12 cells. After 4 days in the absence of serum, cells were processed for direct immunoperoxidase detection of digoxigenin-labeled genomic DNA, as described in Materials and Methods.Back to article page