What is oogenesis? Give a brief account | Class 12 Biology Chapter Human Reproduction, Human Reproduction NCERT Solutions

Q12. What is oogenesis? Give a brief account of oogenesis.

Oogenesis is the process of the formation of a mature ovum from the oogonia in females. It takes place in the ovaries. During oogenesis, a diploid oogonium or egg mother cell increases in size and gets transformed into a diploid primary oocyte. This diploid primary oocyte undergoes first meiotic division i.e., meiosis I or reductional division to form two unequal haploid cells. The smaller cell is known as the first polar body, while the larger cell is known as the secondary oocyte. This secondary oocyte undergoes second meiotic division i.e., meiosis II or equational division and gives rise to a second polar body and an ovum. Hence, in the process of oogenesis, a diploid oogonium produces a single haploid ovum while two or three polar bodies are produced.

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Oogenesis is the process of the formation of a mature ovum from the oogonia in females. It takes place in the ovaries. During oogenesis, a diploid oogonium or egg mother cell increases in size and gets transformed into a...

How do you solve What is oogenesis? Give a brief account of oogenesis. step by step?

Step-by-step explanation:
• Oogenesis is the process of the formation of a mature ovum from the oogonia in females
• It takes place in the ovaries
• During oogenesis, a diploid oogonium or egg mother cell increases in size and gets transformed into a diploid primary oocyte
• This diploid primary oocyte undergoes first meiotic division i
• e

What common mistakes should be avoided in this question?

Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.

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Student Discussion

Mansoon
Class · · , · Jul 19, 2020
Thanks for helping me
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M J N
Class · · , · Oct 22, 2019
Very very nice answer
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Priya
Class · · , · Sep 11, 2019
Thanks 😊
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lllll
Class · · , · Feb 26, 2019
6
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Atul Pandey pandya
Class · · , · Feb 23, 2019
Nice answer guru jii
Atul pandya
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Zephaniah dominic
Class · · , · Feb 16, 2019
Excellent answer....thank you very much.....
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shanu kumar
Class · · , · Jan 28, 2019
many many thanks mast answer hai
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Vishal kumar
Class · · , · Jan 22, 2019
Best answer
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Kirti
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Very nice answer
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JUDHISTHIRA
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Excellent answer
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