Fig. 3. Enlargement of the synaptic vesicles in the dark incubation. Histograms
indicate the size distributions of synaptic vesicles in the wild-type flies
under light illumination (open bars) or dark condition (hatched bars), and in
the Rh1-GAL4/UAS-Rab5N142I flies under light illumination (shaded
bars) or in the dark (closed bars).