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At what stage of life is oogenesis initi...

At what stage of life is oogenesis initiated in a human female?

A

At puberty

B

During menarche

C

During menopause

D

During embryonic development

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Oogenesis**: Oogenesis is the process of formation of ova (egg cells) in females. It involves the transformation of diploid germinal cells into functional haploid ova. 2. **Initiation of Oogenesis**: Oogenesis begins during the embryonic development of a female. This means that the process starts while the female is still in the womb, specifically during the fetal stage. 3. **Completion of Oogenesis**: Although oogenesis starts during embryonic development, it does not complete until fertilization occurs. The secondary oocyte is only fully matured and becomes an ovum after it is fertilized by a sperm. 4. **Identifying the Correct Stage**: Among the options provided (puberty, during menopause, and during embryonic development), the correct answer is that oogenesis is initiated during embryonic development. 5. **Conclusion**: Therefore, the stage of life at which oogenesis is initiated in a human female is during embryonic development. **Final Answer**: Oogenesis is initiated during embryonic development. ---
**Step-by-Step Solution:** 1. **Understanding Oogenesis**: Oogenesis is the process of formation of ova (egg cells) in females. It involves the transformation of diploid germinal cells into functional haploid ova. 2. **Initiation of Oogenesis**: Oogenesis begins during the embryonic development of a female. This means that the process starts while the female is still in the womb, specifically during the fetal stage. 3. **Completion of Oogenesis**: Although oogenesis starts during embryonic development, it does not complete until fertilization occurs. The secondary oocyte is only fully matured and becomes an ovum after it is fertilized by a sperm. ...
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