UAS regulatory sequences drive expression of a short inverted repeat.
Females heterozygous for Wee1GL00039 and MTD-Gal4 (consists of Scer\GAL4otu.T:Hsim\VP16, Scer\GAL4nos.PG and Scer\GAL4nos.UTR.T:Hsim\VP16) crossed to Wee1GL00039 males results in: 2% hatching; egg/embryonic phenotype: "all eggs empty, white"; maternal effect.