A C. elegans with nuclei (DNA) labeled (DAPI stained). Each colored spot (light blue) represents a cell of the C. elegans. Courtesy of Sarah Crittenden, Kimble Lab and John White, LOCI.
Organisms that can make both sperm and oocytes and can self-fertilize. C. elegans has both hermaphrodites and males. The male can mate with hermaphrodites to produce cross progeny.