93B6-93B7;93D3-93D5
93B6-93B7;93D3-93D5
bk2 hits Hsrω
Break at 93D maps approximately 22kb upstream of the Hsrω transcription unit.
Normal development and heat shock-induced expression of the 93D puff are unaffected. The amide responsivity of the chromosome is lost. Dosage compensation is abolished as is the effect of β-alanine levels on its heat shock inducibility.
All limits from polytene analysis (FBrf0102852)