In humans, at end of first meiotic division, male germ cells differentiate into the

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2.Human Reproduction

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In humans, at the end of the first meiotic division, the male germ cells differentiate into the

spermatids

spermatogonia

primary spermatocytes

secondary spermatocytes.

(AIPMT-2008) (AIPMT-1994)

Solution

(d) : During embryonic development the primordial germ cells migrate to the testis where they become spermatogonia. At pubertythe spermatogonia proliferate rapidly by mitosis. Some undergo growth phase to become primary spermatocytes that further undergo through meiotic division I to become secondary spermatocytes. After completion of meiotic division II the secondary spermatocytes produce spermatids which differentiate to form spermatozoa.

Standard 12

Biology