(B) Quantitative analysis of phenotypes. Each experiment was performed in triplicates, innervation rates were calculated from n=21 for elav>DfdRNAi, n=23 for Mef2>DfdRNAi n=20 for elav;Mef2>DfdRNAi animals. Note, each genetic experiment was performed in parallel to an adequate control experiment using the same driver line crossed to a line that controls expression of either UAS-RFP or UAS-GFPRNAi, p-values between two genetic conditions were calculated by a two-sided Fisher test. *** p < 0.005. 