| Spermatocyte | Oocyte |
| 1. Primary Spermatocytes are formed from the spermatogonia in the seminiferous tubules of testes | 1. Primary oocytes are formed from the oogonia in the fetal ovary |
| 2. After meiosis-I, each primary spermatocytes produce two secondary spermatocytes (n) | 2. After meiosis-I, each primary oocytes produce secondary oocytes (n) and 1st polar body (n) |
| 3. Each secondary spermatocytes then further undergoes meiosis-II and forms four spermatids (n) | 3. Each secondary spermatocytes then further undergoes meiosis-II and forms one ootid and 2nd polar body |
| 4. Each primary spermatocyte forms four (n) spermatids | 4. Each primary oocyte forms one ootid and three polar bodies |
| 5. Spermatids then form sperms | 5. Ootid then form ovum |