rok^unspecified embryos display defects in cellularisation including an irregular, wavy cellularisation front. The nuclei of rok^unspecified mutant embryos have striking defects, including displacement into the interior of the embryo leaving reduced numbers at the cortex, with the remaining nuclei often being of increased size and irregular morphology. Despite these defects, many embryos complete cellularisation. At later stages of gastrulation, the outer layer of rok^unspecified mutant embryos becomes multilayered and irregular (compared to a single-layered epithelium in wild-type), containing large, often rounded cells.

Rok^unspecified is a non-suppressor of abnormal planar polarity | heat sensitive phenotype of fz^I.hs

Rok^unspecified is a non-suppressor of wing hair phenotype of fz^I.hs