Question

10 oogonia yield 10 primary oocytes, then how many ova are produced on completion of oogenesis?

• A. 5
• B. 10
• C. 20
• D. 40

Answer 1

Answer: (B)

10

Primary oocyte undergoes first meiotic division produce one secondary oocyte (egg cell) and one polar body (non functional cell). The fertilized secondary oocyte completes meiosis II and produce one ovum and one secondary polar body. Since one primary oocyte obtains one ovum, 10 primary oocytes will obtain 10 ova.

So, the correct answer is option B.