Fig. 6. Genetic mosaics in which an unc-52(+)-bearing extrachromosomal array was lost somatically in animals that were otherwise homozygous for unc-52(st549). A wild-type mosaic is represented by an white circle. Black circles represent viable and fertile dumpy rollers. One of the C(-) mosaics also suffered array loss at EMS, and the P2(-) mosaic also suffered array loss at E. The other mosaic animals had single array losses in this part of the lineage.