crb11A2 mutant embryos display disorganised nervous systems, but the nervous system is not hyper-neuralised.
crb11A2 has epithelial cell phenotype, suppressible by scrib673
The epithelial defects of crb11A2 embryos are markedly suppressed if the embryos are also mutant for scrib673; continuous patches of cuticle are formed in the double mutant embryos and the xonula adherens resembles that of wild-type embryos. The epidermis of late crb11A2 Df(3L)H99 embryos contains many multicellular highly polarised cyst-like structures.