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Figure 3


Fig. 3. Examples of staining at stage 9 (blastula). (A-C) Original images; (A'-C',A''-C'') nuclear images. ß-catenin and P-MAPK images are from double-stained sections. In the Smad1 image (A), the yolk was counterstained with Eriochrome Black (red). (C',C'') Nuclear images of 4 equatorial sections, superimposed. Arrows and arrowheads: prominent patterns, see explanations in the text.