develops_from develops from spermatocyte primary spermatocyte secondary spermatocyte WBbt:0008592 worm_anatomy A haploid immature germ cell which forms in the gonad by the division of a diploid primary spermatocyte. It undergoes a second meiotic division to complete meiosis, at which time the daughter cells detach from the residual body to become spermatids. 2013-04-17T09:54:03Z raymond