Cell death is similar in the posterior compartment expressing DroncCARD.Scer\UAS (via Scer\GAL4en.PU) to the control anterior compartment in RpS3Plac92/+ wing discs in which wild type clones have been induced. However, some homozygous RpS3Plac92 cell clones are observed.
Scer\GAL4en.PU-mediated expression of BacA\p35Scer\UAS.cHa rescues the normal death of homozygous RpS3Plac92 cell clones in the wing disc. In this background, homozygous RpS3Plac92 clones generated by a 10-min heat shock (inducing 10 recombination events per compartment, on average) has no detectable effect on wing size. By contrast, homozygous RpS3Plac92 clones generated by a 60-min heat shock (resulting in 30 'undead' clones in the posterior compartment, on average) results in a significant increase in the size of posterior compartment, detectable in the adult wings.