Live imaging of BB movements and Par3-RFP localization in a nonpolarizing FP cell. wt embryos mosaically expressing Centrin-GFP (green) and Par3-RFP (magenta). White arrows point at the BB at the beginning and end of movie. Images were taken every 5 minutes during the 17 s to 19 s stages time-frame. Lateral view. Corresponds to Fig4D.