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Fig. 5. Expression of Ras-effector loop mutations affects ommatidial rotation. (A-F) Tangential sections of adult eyes through equatorial regions and corresponding schematic drawings indicating ommatidial rotation. Orientation, arrows and circles are as in Figs 1, 3. (A) m{delta}0.5Gal4>UAS-RasV12 (A similar, but weaker effect was generated by activated Egfr {{lambda}-top} under m{delta}0.5Gal4 control; not shown), (B) m{delta}0.5Gal4>UAS-RasV12[S35]. (C) m{delta}0.5Gal4>UAS-RasV12[G37], (D) m{delta}0.5Gal4>UAS-RasV12[C40], (E) sevGal4>UASRasV12[G37], (F) sevGal4>UAS-RasV12[C40].