Locomotor activity of doublegal4:UAS-PHM-rescued PHMmutant flies. Average activity histograms for groups of flies, plotted as described in Figure 4. n, number of flies tested.A, D, G,36Y-gal4/tim(#16)-gal4:UAS-PHM-rescuedPHM mosaics; B, E,H,c929-gal4/386Y-gal4:UAS-PHM-rescuedPHM mosaics; C, F,I,c929-gal4/tim(#16)-gal4:UAS-PHM-rescuedPHM mosaics.