Oogenesis is the process of formation of female gametes or eggs. It occurs in the ovaries of females and involves a series of cell divisions and differentiation.

Process of Oogenesis:

1. Primordial Germ Cells (PGCs) migrate to the developing ovary.
2. PGCs differentiate into Oogonia.
3. Oogonia divide by mitosis to produce primary oocytes.
4. Primary oocytes undergo meiosis I to produce secondary oocytes and polar bodies.
5. Secondary oocytes undergo meiosis II to produce a mature egg and another polar body.

Answer:

During oogenesis, each diploid cell produces one functional egg and three polar bodies.

Explanation:

1. Production of Primary Oocytes:
Oogonia undergo mitotic divisions to produce primary oocytes. These primary oocytes are diploid and are arrested in the prophase stage of meiosis I until puberty.

2. Production of Secondary Oocytes:
At puberty, one primary oocyte is stimulated to undergo meiosis I. During this division, the primary oocyte divides unequally to produce a secondary oocyte and the first polar body. The secondary oocyte is still arrested in the metaphase stage of meiosis II.

3. Production of Mature Egg:
If the secondary oocyte is fertilized by a sperm, it completes meiosis II and forms a mature egg and the second polar body. The mature egg is capable of fertilization and further development.

4. Production of Polar Bodies:
The polar bodies are small, non-functional cells that are produced during meiosis. These cells contain only a small amount of cytoplasm and eventually degenerate.

Conclusion:

Thus, during oogenesis, each diploid cell produces one functional egg and three polar bodies. Only one functional egg is produced because the other cells produced during meiosis are non-functional and eventually degenerate.

Diploid oogonia mitosis hoke 1 St polar body and secondary oogonia and then 1st polar body mitosis hoke aur do polar body banathe hai it means total 3 polar body and one ovam