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Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.?
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Oogonial cells starts to proliferate and give rise to fuctional ova in...
This statement is wrong because The process of formation of a mature female gamete is called oogenesis. Unlike sperm formation that starts at pubarty egg formation begins before birth. Primordial germ cells complete the proilferative stage or oogenesis in the early embryonal stage when million of gamete mother cells (oogonia) are formed within each faetal ovary, no more oogonia are formed and added after birth.
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Oogonial cells starts to proliferate and give rise to fuctional ova in...
Oogonial cells start to proliferate and give rise to functional ova in a regular cycle from puberty onwards.
- Introduction
- Oogonial Cell Proliferation
- Puberty and Ovarian Cycle
- Oogonial Cell Transformation
- Functional Ova Formation
- Conclusion
During puberty, the reproductive system undergoes significant changes in both males and females. In females, one of the important processes that occur during this time is the development and maturation of ova (eggs) in the ovaries. Oogonial cells, also known as oogonia, play a crucial role in this process.
- Oogonial cells are the primordial germ cells that differentiate into oocytes, the female gametes.
- These cells multiply through mitosis during fetal development and form a pool of cells called oogonia.
- However, once a female is born, oogonia undergo a process called meiotic arrest and remain in this dormant state until puberty.
- Puberty is the stage of life when the reproductive organs become fully functional, and secondary sexual characteristics develop.
- In females, the onset of puberty is marked by the activation of the hypothalamic-pituitary-gonadal axis, which controls the ovarian cycle.
- The ovarian cycle consists of follicular phase, ovulation, and luteal phase, repeating approximately every 28 days.
- During the follicular phase, a group of oogonia is stimulated to undergo maturation and development into primary oocytes.
- Within the ovary, oogonial cells transform into primary oocytes.
- The transformation process involves the reactivation of meiosis, specifically meiosis I.
- Only a few primary oocytes complete meiosis I and progress to the next stage, while the majority undergo degeneration.
- This selection process, known as follicular atresia, ensures that only a limited number of oocytes are available for further development.
- The primary oocytes that survive meiosis I arrest at prophase of meiosis II until they are selected for ovulation.
- With each menstrual cycle, a small group of primordial follicles is recruited for development, and one dominant follicle becomes the mature Graafian follicle.
- The mature Graafian follicle releases a secondary oocyte during ovulation, which is then ready for fertilization by a sperm.
- Once fertilized, the secondary oocyte completes meiosis II, resulting in the formation of a functional ovum.
In summary, oogonial cells undergo proliferation and transformation into functional ova during the ovarian cycle, which starts from puberty onwards. The activation of the hypothalamic-pituitary-gonadal axis triggers the development and maturation of oocytes, allowing for the possibility of reproduction. However, it is important to remember that not all oogonial cells progress to become functional ova, as there is a process of selection and degeneration to ensure the quality and viability of the eggs.
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Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.?
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Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.?.
Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Oogonial cells starts to proliferate and give rise to fuctional ova in regular cycle puberty onwards. Is this statement us correct.Give reasons also.?.
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