Fig. 1. Flow cytometry analysis of the cell cycle status of developing hepatocytes. Flow cytometry was performed on cells isolated from fixed liver (A), and on freshly isolated hepatocytes (B). Graphs represent the flow cytometry results as DNA content versus number of cells [left-most gray peak, G0-G1; central black peak (when present), S phase; right-most gray peak, G2-M]. Percentages below each graph, the proportion of cells in each phase of the cell cycle. These results are representative of triplicate experiments.