The reduced waste excretion rate of Pkd2ko67 homozygous larvae is restored to wild-type levels by expression of Pkd2Scer\UAS.cGa under the control of Scer\GAL4how-24B. The reduced food ingestion rate of Pkd2ko67 homozygous larvae is partially rescued by expression of Pkd2Scer\UAS.cGa under the control of Scer\GAL4how-24B.