When does the secondary oocyte complete meiosis II?
Correct answer: C. Only after fertilization occurs
- A. Before it leaves the ovary
- B. During follicle development
- C. Only after fertilization occurs
- D. At the start of menstruation
Explanation
The secondary oocyte remains arrested in meiosis II and completes it only when a sperm penetrates the oocyte. This produces the mature ovum and a second polar body.
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About Reproductive System
The reproductive system covers the male and female reproductive organs, gamete formation, the menstrual and ovarian cycles, fertilization, implantation and pregnancy. It explains the roles of FSH, LH, oestrogen, progesterone and testosterone, while distinguishing spermatogenesis from oogenesis and the reproductive organs from the accessory glands.
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