visible, with Scer\GAL4dpp.blk1
anterior crossvein, with Scer\GAL4dpp.blk1
wing vein L3, with Scer\GAL4dpp.blk1
Flies expressing B0256B0256 under the control of Scer\GAL4dpp.blk1 lack the anterior crossvein and wing vein L3 does not extend to the margin.