UASt regulatory sequences drive expression of a 500bp inverted repeat.
decreased size | pharate adult stage, with Scer\GAL4ey.PU
lethal - all die before end of P-stage, with Scer\GAL4en.PU
partially lethal - majority die, with Scer\GAL4ey.PU
eye | absent | pharate adult stage, with Scer\GAL4ey.PU
head | pharate adult stage, with Scer\GAL4ey.PU