||Fig. 3. Expression of XHox11 in the visceral arches. A: Cross section through visceral arch 1 of a stage 20 embryo. XHox11 is expressed in the migrating paraxial mesoderm. B: Frontal section through the visceral arch
region of a stage 32 embryo showing transcripts localized in the muscle plates of the mandibular (m), hyoid (h), and 1st branchial (1b) arches. C: Cross section of a stage 32 embryo at the level of the mandibular arch shows expression in the developing thyroid gland (th). cg, cement gland. Brown color is natural pigmentation.