Fig. 2. The behaviour of GFP-Cdc16 (top panels) and GFP-Cdc27 (bottom panels) in living syncytial embryos. The time (in minutes) is shown in the top left-hand corner. Arrows indicate the small dots seen in interphase nuclei (0:0) or the position of the spindle midbody (7:00). Bar, 10 µm.