Embryos derived from exuunspecified mutant females have anterior structures replaced by posterior midgut and proctodeum.
exuunspecified has male sterile phenotype, suppressible by exu::Dpse\exu1594
exuunspecified has embryo | anterior phenotype, enhanceable by bcdunspecified
exuunspecified, vasunspecified has embryo phenotype
The phenotype of embryos derived from exuunspecified mutant females is enhanced by bcdunspecified. exuunspecified vasunspecified double mutants produce dicephalic embryos.