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NEETZoologyHuman Reproduction

Select the correct statement regarding the structures in the Diagrammatic Section view of an ovary:

Options

  1. AEach primary oocyte then gets surrounded by a layer of granulosa cells and is called the secondary follicle.
  2. BThe Graafian follicle is the mature follicle ready for ovulation.
  3. CThe corpus luteum is formed before the ovum is released.
  4. DThe secondary follicle which is characterized by a fluid filled cavity called antrum.

Correct answer

B. The Graafian follicle is the mature follicle ready for ovulation.

Step-by-step solution

A is incorrect.Each primary oocyte then gets surrounded by a layer of granulosa cells and is called the primary follicle. B is correct. The tertiary follicle further changes into the mature follicle or Graafian follicle.The Graafian follicle now ruptures to release the secondary oocyte (ovum) from the ovary by the process called ovulation. C is incorrect. The ovulation (ovulatory phase) is followed by the luteal phase during which the remaining parts of the Graafian follicle transform as the corpus luteum. D is inc

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