Follicle cell stress fibres in by3R-13 clones seem normal.
by3R-13 dorsal branch terminal cell clones do not cause any detectable defects in terminal cell morphology.
Homozygotes have discrete, round blisters of variable size on the wing. These blisters are limited to the distal half of the wing. Wing venation is normal.
Homozygous clones in the wing produce a blistered phenotype.