UASt regulatory sequences drive expression of an inverted repeat.
Expression under the control of Scer\GAL4pnr-MD237 results in external sensory organs consisting of empty or multiple sockets in 10-20% of the Scer\GAL4pnr-MD237 expression domain of the notum.
Expression under the control of Scer\GAL4pnr-MD237 results in bristle morphology defects on the notum in 80-90% of the Scer\GAL4pnr-MD237 expression domain.