the 93d heat shock locus was mapped relative to an overlapping series of deficiencies of the 93d region by three criteria : the ability of the deleted chromosomes to puff at 93d , the ability of the deleted chromosomes to synthesize rna from the 93d region after a temperature shift and the presence of heat shock rna sequences at 93d as assayed by in situ hybridization .
C1708726
locus
C0008633
chromosomes