Human Reproductive System Related

Review Human Reproductive System related questions and content

The result of oogenesis is _____.

  • A. one secondary oocyte
  • B. two secondary oocytes
  • C. one ovum
  • D. four ootids
Correct Answer: C

Rationale: The correct answer is C: one ovum. During oogenesis, a primary oocyte undergoes meiosis to produce one mature ovum and three polar bodies. The ovum contains the majority of the cytoplasm and organelles needed for fertilization. The other choices are incorrect because:
A: one secondary oocyte - After meiosis I, the primary oocyte develops into one secondary oocyte and one polar body.
B: two secondary oocytes - This is not a possible outcome of oogenesis as only one secondary oocyte is produced.
D: four ootids - Ootids are the immediate products of meiosis II in oogenesis and are not the final mature gametes like the ovum.