Video 19. Explant of deep IMZ from an embryo injected at 2 cells stage with Alexa-555 dextran in one cell and Alexa-488 dextran in the other, imaged at 60 X via LSCM at a depth of 3–5 μm.

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Movie on the left is around Stage 9.5(G-64m to –49 m), the one on the right around Stage 10 (G-2m to +15 m). 30 s/frame. Scale bar = 20 μm.