Expression of a 1.9kb BamHI genomic fragment containing the sc basal promoter and the complete transcribed region is governed by a 5.7kb EcoRI fragment bearing the dorsocentral AS-C enhancer and the 0.36kb SMC enhancer fragment.
In a Df(1)sc10-1 background, two DC macrochaetae and several microchaetae form per heminotum. In a Df(1)260-1 background, two DC macrochaetae form per heminotum.
sc+mDC.SMC partially rescues sc10-1