Fig. 2. Scanning electron micrographs of the phenotypes of expressing different mutant forms of RBF. (A) Wild type. (B-H) Different RBF mutant constructs expressed using the eyeless GAL4 driver. (B) Wild type RBF; (C) RBF-223; (D) RBF-10; (E), RBF-30; (F) RBF-555L; (G) RBF-596W; (H) RBF-16. (I,J) GMRRBF-280⁴ at low (I) and high (J) magnification. (K) Wild type at high magnification. (L) GMRCyclin D/+. Arrowhead in J shows fused ommatidia; arrow shows an ommatidium with abnormal shape.