28F1-28F2;29A2-29B1
28F1-28F2;29A2-29B1
bk1 << Btk29A << bk2
Dominant suppressor of In(1)wm4h position-effect variegation.
Hemocyte development appears normal in mutants at early stages (stage 12) at later stages (stage 15) no hemocytes are seen.
Homozygous lethal.
All limits from polytene analysis (FBrf0050576)