Fig. 5. Expression of her7 in Delta/Notch segmentation mutants. Embryos at bud stage (A-D) and the ten somite stage (E-I) have been dissected from the yolk and flat mounted with anterior upwards after in situ hybridization with her7 riboprobe. Scale bar: 250 µm. Expression patterns of her7 are shown in wild type (A,E), and in the bea (B,F), aei (C,G), des (D,H) and wit (I) mutant backgrounds. Embryos with cyclic expression domains at stage III and II are shown in E.