Homozygous females are sterile, and lay 14-18.8% as many eggs as wild-type. The endochorion is essentially normal, and the respiratory appendages are abnormal.
Mature follicles of homozygous females have no defects in the endochorion but have defective respiratory appendages.
morphologically abnormal eggs that fail to hatch. Various defects in respiratory appendages and chorionic architecture germ-line-dependent
Germ line clonal analysis shows that fs(1)de10a is germ line-dependent.