UAS regulatory sequences drive expression of a short inverted repeat.
Females heterozygous for mosGL00142 and MTD-Gal4 (consists of Scer\GAL4otu.T:Hsim\VP16, Scer\GAL4nos.PG and Scer\GAL4nos.UTR.T:Hsim\VP16) crossed to mosGL00142 males results in: 19% hatching; egg/embryonic phenotype: "twisted, head defects, variable segmentation defects"; maternal effect.