Heterozygotes are WT and segregate embryonic lethals (sy216 homozygotes) and paralyzed Uncs (h1040 homozygotes). sy216 is a deletion of the unc-101 gene region. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozygotes are WT and segregate WT, paralyzed Unc, and coilers which give only dead eggs (low brood size).