Calculation of Primary and Secondary Polar Bodies
Primary Polar Bodies:
- When a female goes through meiosis I during oogenesis, she produces one primary oocyte and one primary polar body.
- So, by the age of 25, the female has undergone 10 cycles of menstruation (25-15=10), which means she has completed 10 rounds of meiosis I.
- Therefore, she has produced 10 primary polar bodies.
Secondary Polar Bodies:
- During meiosis II in oogenesis, each secondary oocyte produces one secondary polar body.
- Since the female has a 6-year-old baby boy, she must have undergone fertilization 6 years ago, resulting in the formation of a secondary polar body.
- Therefore, she has produced 1 secondary polar body.

Explanation:
- In total, the female has produced 10 primary polar bodies and 1 secondary polar body.
- Primary polar bodies are produced during meiosis I, while secondary polar bodies are produced during meiosis II in oogenesis.
- The primary polar bodies are smaller and eventually degenerate, while the secondary polar body usually degenerates as well.
- The primary polar body is important for ensuring the proper distribution of genetic material during oogenesis, while the secondary polar body is essential for the completion of the process of fertilization.
In conclusion, the female has produced a total of 11 polar bodies (10 primary and 1 secondary) by the age of 25, as a result of the meiotic divisions that occur during oogenesis.