loss of function allele
P insert detected in EcoRI fragment 5' to start of transcription.
lethal | recessive
X ray induced non-sister chromatid exchange generated one homozygous clone, this clone affected one bristle. The bristle is wild type.
Embryos derived from germ line clones proceed through cycles 1-13 normally.
homozygous lethal and do not display a stg phenotype;
fails to complement completely strong stg alleles.
Reversion of the P-element insertion results in restoration of viability, demonstrating the chromosome is otherwise free of other lethal mutations.