English: Time-lapse movies of Xenopus laevis early embryonic cell cycles in PD0166285 and cycloheximide-treated embryos, related to Figure 7. Embryos in the left upper quadrant were DMSO-treated control embryos. Embryos in the right upper quadrant were treated with 30 µM PD0166285 during the first cycle. Embryos in the left lower quadrant were treated with 0.25 µg/µl of cycloheximide during the first cycle. Embryos in the right lower quadrant were treated with 30 µM of PD0166285 and 0.25 µg/µl of cycloheximide during the first cycle. The movie starts at 2.5 h postfertilization and ends at 10.5 h postfertilization. Three snapshots are shown in Figure 7G.