Heterozygotes are WT and segregate WT, arrested DpyUncs, Lon males and large number of aneuploid progeny (arrested embyros or larvae). Note that unc-29 is outside the recombination-suppressed region of szT1 and may cross off resulting in Unc-29 progeny. Pick WT and check for correct segregation of progeny to maintain. This strain was generated by the Genetic Toolkit project, which should be acknowledged in any publications resulting from its use: The Genetic Toolkit is funded by the NIH National Center for Research Resources (NCRR) (USA) to Ann M. Rose, David L. Baillie, and Donald L. Riddle. Report all experimental results to Ann Rose.