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Cortical granules release from ovum to prevent
- a)Acrosomal reaction
- b)Polyspermy
- c)Capacitation
- d)all
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Cortical granules release from ovum to preventa)Acrosomal reactionb)Po...
Cortical granule release From ovum due to penetration of one sperm which is responsible for preventing polyspermy
This question is part of UPSC exam. View all NEET courses
Most Upvoted Answer
Cortical granules release from ovum to preventa)Acrosomal reactionb)Po...
The cortical reaction is a process initiated during fertilization by the release of cortical granules from the egg, which prevents polyspermy, the fusion of multiple sperm with one egg. So, the correct answer is "polyspermy".
Community Answer
Cortical granules release from ovum to preventa)Acrosomal reactionb)Po...
Explanation:
Therefore, the correct answer is option 'B' - Polyspermy.
- Cortical granules are secretory vesicles present within the cytoplasm of the ovum.
- At the time of fertilization, the cortical granules release their contents into the perivitelline space.
- The contents of the cortical granules cause the zona pellucida to harden and prevent additional sperm from entering the ovum. This process is known as the cortical reaction.
- Polyspermy is the fertilization of an egg by more than one sperm.
- Polyspermy will result in the formation of an abnormal zygote and ultimately leads to embryonic death.
- The cortical reaction caused by the release of cortical granules helps prevent polyspermy by hardening the zona pellucida and making it impenetrable to additional sperm.
- Thus, the release of cortical granules from the ovum is essential to prevent polyspermy.
Therefore, the correct answer is option 'B' - Polyspermy.
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Cortical granules release from ovum to preventa)Acrosomal reactionb)Polyspermyc)Capacitationd)allCorrect answer is option 'B'. Can you explain this answer?
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