[21A1-21A1];[21B1-21B1];
A set of isogenic deficiency stocks created by FLP-induced recombination between FRT-carrying transgenic insertions; molecularly defined deletion endpoints correspond to initial location of the progenitor insertions. Initial core set of 209 isogenic deletions provides ~60% euchromatic genome coverage.
21A1;21B1
Dominantly modifies the size of pupae relative to wild-type controls.
Terminal deletion of the 2L chromosome, capped by the tip of the X chromosome.