UASt regulatory sequences drive expression of an inverted repeat.
Depending on the insertion line used, expression under the control of Scer\GAL4Mef2.PR can result in a weak flyer phenotype or late pupal lethality.
Expression under the control of Scer\GAL4pnr-MD237 may result in semi-lethality, depending on the insertion line used.
Expression under the control of Scer\GAL4pnr-MD237 results in the absence of 40-50% or 50-60% of the Scer\GAL4pnr-MD237-expressing area of the notum, depending on the insertion line used.