DL1 drosha∆,E859K mutant neurons display phenotypes that are rescued by WT drosha. Acj6-Gal4, UAS-mCD8::GFP-labeled WT (A and B), drosha∆,E859K (C and D), and rescued drosha∆,E859K (E and F) adult DL1 clones generated in newly hatched larvae and stained with anti-GFP (green) and anti-nc82 (blue) antibodies. (Scale bar: A, C, and E, 10 μm; B, D, and F, 20 μm.)