Zoology - Human Reproduction Question with Solution | TestHub

In oogenesis, one primary oocyte forms one secondary oocyte and one polar body. Secondary oocyte after second meiosis forms one mature ovum and one polar body. Thus 100 secondary oocytes will form 100 ova.

In spermatogenesis, one primary spermatocyte after first meiosis forms two secondary spermatocyte which undergoes second meiotic division to form four sperms. Thus 100 secondary spermatocytes will form 200 sperms.