Females, homozygous for scra⁶, lay morphologically normal eggs that fail to hatch. These mutant embryos exhibit cellularisation defects. Despite defects in furrow canal structure and septin targeting, the cellularisation front still ingresses in scra⁶/scra⁶ mutant embryos. In comparison to wild-type, the initiation phase of ingression is eliminated. Instead, a cellularisation front begins to ingress as soon as mitosis is completed, at a roughly constant slow rate. A distinct transition to a faster rate can be observed, but both slow and fast rates of ingression are slower than their wild-type counterparts.

Eggs derived from homozygous females form a syncytial blastoderm and begin to cellularise normally, but cellularisation is often not completed. Gastrulation takes place but is usually very abnormal. The embryos form pieces of cuticle.