P{AyGAL4}25 from which the w gene, the Act5C promoter and the first Scer\FRT have been deleted by imprecise excision, leaving the y gene, the second Scer\FRT and the Scer\GAL4 gene intact.
P{AyGAL4}25 from which the w gene, the Act5C promoter and the first Scer\FRT have been deleted by imprecise excision, leaving the y gene, the second Scer\FRT and the Scer\GAL4 gene intact.