Mitotic timing in a bubR1-KEN1 mutant neuroblast. bubR1-KEN1 mutant Drosophila larval neuroblast labeled with GFP-Rod (green). The GFP-Rod channel corresponds to Fig. 2C. Images were acquired by confocal spinning disk microscopy. Frames were taken every 20 s for 11.55 min. The video is shown at 8 frames/s.