To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 8 A Bra-GFP, pCMV-Strawberry large EB differentiated while embedded in Matrigel. Bra expression onsets from one locus, expanding from that point into the whole sphere. This dynamic represents 2/15 imaged EBs. Prediction and control of symmetry breaking in embryoid bodies by environment and signal integration Naor Sagy, Shaked Slovin, Maya Allalouf, Maayan Pour, Gaya Savyon, Jonathan Boxman, and Iftach Nachman Development 2019. 146:None-None; doi: 10.1242/dev.181917 Download Original Video