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प्रश्न
During oogenesis, each diploid cell produces ______.
पर्याय
four functional eggs
two functional eggs and two polar bodies
one functional egg and three polar bodies
four functional polar bodies
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उत्तर
During oogenesis, each diploid cell produces one functional egg and three polar bodies.
Explanation:
- During oogenesis, a diploid primary oocyte undergoes meiosis I to produce one large secondary oocyte and a smaller polar body.
- The secondary oocyte undergoes meiosis II after fertilization to form one functional ovum and a second polar body.
- The first polar body may also divide to form two smaller polar bodies.
- Therefore, from one diploid cell, oogenesis results in one functional egg (ovum) and three polar bodies which are non-functional and eventually degenerate.
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संबंधित प्रश्न
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions:
- Acrosome
- Nucleus
- Middle piece
Sex organs produce gametes which are diploid.
Give a schematic representation of spermatogenesis and oogenesis in humans.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
Which of the following is diploid?
Find out the CORRECT sequence of spermatogenesis.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
1st polar body is formed at which stage of oogenesis?
Head of epididymis is called as ______.
