When grimΔ89-92.Scer\UAS is driven by Scer\GAL4GMR.PF, about 45% of animals survive. When grimΔ89-92.Scer\UAS is driven by Scer\GAL4Bx-MS1096, about 40% of animals survive. When grimΔ86-98.Scer\UAS is driven by Scer\GAL4GMR.PF no significant eye phenotype is seen.