Expression of parkin does not affect climbing ability or life span. Panel A – Climbing ability of flies that express parkin does not differ from control flies. Genotypes are w1118; UAS-parkin1.1/Ddc-Gal4 (green open triangle), w1118; UAS-parkin2.1/Ddc-Gal4 (orange open square) and w1118; Ddc-Gal4/+ (black open circles). The error bars show the standard error of the mean of twenty trials at each point. Please note that the error bars are mostly within the symbols. B – The life span of flies that express parkin does not differ from the control. The genotypes are marked the same as in panel A. The mortality of flies was examined every two days.