Heterozygotes are WT and segregate WT, Unc Lins and very slow growing constipated worms. n2559 is a null allele of itr-1.

Unc. n2018 is cold sensitive. Most animals at 15C are Vul/Let. AT 25C, 25% of the animals are non-Vul.

Intermediate severity of lin-45 raf allele: at 20C, 76% larval lethal and 24% display an abnormal vulva (either Egl, no discernable vulva, or PVul). Medium Dpy. Received new stock 11/2002.