Fig. 7. Wit and Put act downstream of Babo. (A) Quantification of CA Babo defects in control (w¹¹¹⁸), or with one mutant copy of wit, put, UAS-witI or UAS-putI, as indicated. n, number of hemispheres examined. (B,C) babo-null clones expressing either UAS-wit (B) or UAS-put (C). Wit or Put expression suppresses the babo axon overextension but not the axon pruning phenotype. Scale bar: 20 µm. (D) Quantification of babo axon growth phenotypes in the presence of one copy of UAS-wit, or UAS-put, as indicated. (E) A model of Babo-regulated axon growth derived from data in this study.