Mutant ovaries contain egg chambers showing a range of phenotypes, from the 16 nurse cell phenotype, to wild-type egg chambers that produce a normal egg. The number of germ-cells in mutant egg chambers is variable. The occurrence of a wild-type egg chamber in BicD^H2 ovaries varies among females and ovarioles. Some ovarioles contain exclusively mutant egg chambers, while others consist of mostly wild-type egg chambers. However more than 50% of ovarioles contain both wild-type and mutant egg chambers. The occurrence of mutant egg chambers increases with the age of the females. Ovaries from 3-5 day olds contain 20-30% 16 nurse cell egg chambers; ovarieds from 12-14 day olds contain 50-70 % nurse cell egg chambers. In BicD^H mutants the differentiation of the follicle cells is not affected, but the migration of the cells can be abnormal. During stage 2b Fas3 expressing follicle cells migrate between the interconnected cystocytes of the germline cysts, rather than migrating only on the surface of the cysts. Second, gaps in the follicle cell layer are occasionally detected in region 3 of the germarium. In BicD^H mutants bipolar egg chambers are sometimes seen. Defects in the nuclear morphology of oocyte nuclei are seen, Occasionally polyploidy and intermediate polyploidy is seen in the oocyte nucleus of these egg chambers. The formation of the microtubule organising centre (MTOC) seen in germarial region 2a is normal. However the polarised microtubule network starts to break down at subsequent stages in some egg chambers.

21% of eggs laid by BicD^H2, BicD^r5/Df(2L)TW119 females display a variety of ventralised phenotypes ranging from partially fused dorsal appendages to completely missing dorsal appendages. In rare cases small, collapsed eggs and eggs with an open chorion are observed.