Elegans Genetic Center for many mutants of miRNA and other genes. Images were pseudocolored in Photoshop CS3 (Adobe) and assembled in Illustrator CS3 (Adobe). The data for 3′UTR expression and for VPC timing were analyzed using χ2 test. To determine viability, 20-μL aliquots (60–100 worms) were placed every 3 d onto two 6-cm nematode growth medium (NGM) plates seeded with OP50, and the numbers of L1 worms were recorded as number of plated worms (Np). A total of 16–24 h later, the density of newly hatched L1 worms was adjusted to three to five worms per microliter S-basal. The eggs were transferred to plates seeded with HB101 and bleached again 3 d later.
