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Fig. 6. Apoptosis analysis. TUNEL staining of E10.5 transverse sections
through the mandibular arch reveals that TUNEL-positive cells (arrows) are
confined to the proximal region in wild-type mouse embryos (A), but
extend widely into the distal arch region in Ednraneo/neo
(B) and Ednraneo/B (C) embryos. Scale bars:
100 µm. pa1, first pharyngeal (mandibular) arch.