Menstrual Cycle and Spermatogenesis · Physiology

Which of the following describes the correct chronological order of cells in spermatogenesis?

  1. Spermatogonia -> Secondary spermatocyte -> Primary spermatocyte -> Spermatid
  2. Spermatogonia -> Primary spermatocyte -> Secondary spermatocyte -> Spermatid
  3. Spermatid -> Primary spermatocyte -> Secondary spermatocyte -> Spermatogonia
  4. Primary spermatocyte -> Spermatogonia -> Secondary spermatocyte -> Spermatid
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Correct answer: Spermatogonia -> Primary spermatocyte -> Secondary spermatocyte -> Spermatid

Spermatogenesis begins with diploid spermatogonia, which divide to become primary spermatocytes. These undergo Meiosis I to become secondary spermatocytes and Meiosis II to become haploid spermatids.

Difficulty: Medium Question 26 of 40

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