The middle piece of a mammalian sperm contains:

After spermiogenesis,sperm head becomes embedded in Sertoli cell,and is finally released from the seminiferous tubules by the process called as $:-$

If $2n = 16$ in a primary spermatocyte which is in the metaphase of the first meiotic division,what shall be the total number of chromatids in each of the secondary spermatocytes?

The membrane investing the ovum just outside the membrana granulosa is

Spermatogenesis is induced by

At puberty,how many primary follicles are left in each ovary?