Fig. 4. Three orientations of divisions can be seen in timelapse analysis of cleavage stage embryos. (A-C) Examples of each kind of division are shown. The colour code depicts the type of division that a cell is about to undergo (blue indicates parallel, green indicates oblique and red indicates perpendicular). (D) Corresponding still images from the timelapse movie. All panels are views from the animal pole and dorsal is towards the top.