Induced on: P{GMR-hid}SS1 P{neoFRT}19A chromosome. Selected as: a putative cell lethal (on the same chromosome arm as the P{GMR-hid} transgene) that improves eye morphology in flies which are carrying one copy of the dominant photoreceptor cell lethal P{GMR-hid} transgene and in which mitotic recombination is occurring in the eye due to the presence of both Scer\GAL4ey.PH and Scer\FLP1Scer\UAS.cDa. The presumed cell lethal mutation has not been characterised.