Expression of an ap cDNA is driven by the ap dorsoventral enhancer 'DV' and a region around the ap transcription start site including the Polycomb Response Element (PRE) 'P'.
apcDNA.DV+P fails to rescue aprK568/apUGO35
Expression of two copies of apcDNA.DV+P fails to rescue the wing loss seen in apUGO35/aprK568 mutant flies.