Which one of the following is not the function of testis at puberty?

At puberty, the testis which is a male reproductive organ performs various functions in the male body like secretion of testosterone, formation of sperms, and release of seminal fluid. However, the release of ova, the female gamete is mediated by the ovaries (female reproductive organ) and not by the testes.

Thus, the release of the ovum is not a function of the testis at puberty.