50 secondary oocytes in females and 50 secondary spermatocytes in males give rise to:

Explanation

Spermatogenesis is the process of formation of spermatid (n) from spermatogonia(2n). The process goes as follows:-Spermatogonia(2n)⟶ Primary Spermatocyte(2n)⟶2 Secondary Spermatocyte(n)⟶4 Spermatid(n)Oogenesis is the production of an ovum from oogonia. The mechanism, in short, can be depicted as below:-Oogonia(2n)⟶ Primary Oocyte(2n)⟶ Secondary Oocyte(n)+ Polar Body(n)This meiosis I is an unequal division leading to the formation of a haploid ovum and a polar body. The first polar body is said to be atretic and does not divide further. However, the secondary oocyte completes its meiosis during fertilization to form an egg(n) and the second polar body(n).So, 50 secondary oocytes produce 50 ovum and 50 secondary spermatocytes produce 100 sperms.