ZoologyWhich of the following is the correct statement about spermatogenesis?

Which of the following is the correct statement about spermatogenesis?

  1. A

    Spermatogonia have 46 chromosomes and always undergo meiotic cell division

  2. B

    Primary spermatocytes divide by mitosis.

  3. C

    Secondary spermatocytes have 23 chromosomes and undergo second meiotic division

  4. D

    Spermatozoa are transformed into spermatids

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    Solution:

    Each spermatogonium is diploid and contains 46 chromosomes and undergoes mitotic divisions. 

    Primary spermatocytes undergo meiosis-I

    A secondary spermatocytes have 23 chromosomes each and undergo meiosis-II. 

    The spermatids are transformed into spermatozoa (sperms) by the process called spermiogenesis. 

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