Homozygous clones in the eye result in patches of necrotic tissue, naked cuticle lacking photoreceptors and tubular outgrowths.
In homozygous clones in the eye disc, cells remain apically constricted several rows posterior to the morphogenetic furrow, in contrast to wild type. The clones are not rounded, but they segregate away from neighbouring wild-type cells as they remain in the lower plane of the morphogenetic furrow.
aopunspecified embryos have an average of 5.3 +/- 0.10 neurons per lch5 organ.
Homozygotes have an excess of R7-like central photoreceptors.
Homozygous embryos have an anterior dorsal hole in the epidermis, and brain and sometimes gut extrude through this hole. Head involution is normal. The defects are visible during dorsal closure.