UASt regulatory sequences drive expression of tal sequences in which all 4 type-A ORFs have been deleted, leaving 1 type-B ORF.
Scer\GAL4unspecified/taldelA.UAS fails to rescue talunspecified
Expression of pridelA.Scer\UAS under the control of Scer\GAL4unspecified fails to rescue the priunspecified phenotypes in the adult and the embryo.