UASt regulatory sequences drive expression of an inverted repeat.
Expression under the control of Scer\GAL4pnr-MD237 results in extra bristles on the notum in 0-10% or 30-40% of the Scer\GAL4pnr-MD237 expression domain, depending on the insertion line used.
Expression under the control of Scer\GAL4pnr-MD237 results in the absence of 0% or 30-40% of the Scer\GAL4pnr-MD237-expressing area of the notum, depending on the insertion line used.