FLP-mediated excision between PBac{RB}Drep2e02920 and PBac{RB}Drep2e04659 has resulted in deletion of all of the Drep2 exons except for the 12bp first exon.
Scer\FRT-mediated recombination between the two progenitor insertions has resulted in the deletion of the genomic sequence between them.
Thes mutants are short lived compared to controls.