||Superficially wild type
||mex-3(zu155) dpy-5(e61)/hT1 I; pos-1(zu148) unc-42(e270)/hT1 V.
||The double heterozygote is WT. WT will segregate WT, DpyUncs, mid-larval lethal (hT1 homozygotes) and dead eggs. The DpyUncs are homozygous for zu155 and zu148 and will segregate only dead embryos; the dead embryos have excess hypodermis and muscle and lack germ cells and intestine.
||+/nT1 IV; pos-1(zu148) unc-42(e270)/nT1 V.
||Heterozygotes are WT and segregate WT, Uncs, Vul and dead eggs. Uncs are homozygous for zu148 and will segregate only dead embryos; the dead embryos will have no morphogenesis and will lack germ cells and intestine.