(b) dRagA positively regulates wing cell size. The average area of posterior compartment cells from en-GAL4 UAS-dRagA adult wings is shown. Cells expressing dRagAQ61L are significantly larger and dRagAT61N-expressing cells are smaller than controls. Data are mean ± s.d., *P = 1.15 × 10−3 (n = 7), **P = 0.025 (n = 12), Student's 2-tailed t-test (n represents number of adult wings analysed). 