Control embryonic epithelial cells do not apically contract following 1NA-PP1 addition. Example of adherens junctions of control embryonic epithelial cells expressing Baz::GFP. Z stack collected every 2min30sec, movie displayed at 3 frames per sec. Time: mm:ss. 00:00 marks the addition of 20 μM 1NA-PP1. Scale bar: 5 μm.