Embryos derived from females carrying oskbcd.3UTR.A7 have head defects, including a reduction in the cephalopharyngeal skeleton.
oskbcd.3UTR.A7 has embryo | anterior phenotype, enhanceable by bru1QB
This phenotype is enhanced if the mother is also heterozygous for aretQB; embryos derived from aretQB/+ ; oskbcd.3UTR.A7 females have extensive anterior deletions, often accompanied by duplication of posterior pattern elements. The phenotype is also enhanced by Df(2L)esc-P3-0.