Figure 2. Cell-cycle analysis of RPC-C2A-K4 cells exposed to hypoxia. (A) Representative results of cell-cycle distribution of the cells under normoxic (non-treated) and hypoxic conditions for 24 and 48 hrs. (B) Changes that occurred during each phase of cell-cycle distribution during hypoxia are indicated at the times noted. (C) Representative morphologies of non-treated and hypoxia-exposed cells. Scale bar = 10.0 µm.