Animals expressing B0183B0183 under the control of Scer\GAL4dpp.blk1 have a reduced or missing arista. Severe deformation and shortening of legs is seen, with one claw often present, and the legs sometimes appear split.
Expression of B0183B0183 under the control of Scer\GAL4dpp.blk1 results in extreme shortening and malformation of the leg. Split legs are sometimes seen. One claw is often present.