P{lacW} insertion in exon 1.
Heterozygotes show eggshell phenotypes including forked and fused dorsal appendages. Some of the eggs are translucent, ruptured or flaccid with variable and underdeveloped dorsal appendages. These eggs appear to have poorly developed chorions.
Sec61beta[+]/Sec61βk16004 is an enhancer of dorsal appendage phenotype of Ras85Dix12a
Strong dominant enhancer of the Ras85Dix12a eggshell phenotype; 0-20% of dorsal appendages are wild type.