The women is now at the age of 24 ,she attained puberty at 14.now how teo children so how many polar bodies formed till date(each M.C. is 30 days) Correct answer is 92 .can you xplain thz?

Question

Answer

Explanation:

The process of oogenesis starts during fetal life and continues until menopause in females.

At the time of puberty, the female ovary contains around 4,00,000 immature ova or primary oocytes.

During each menstrual cycle, only one primary oocyte completes meiosis I and forms a secondary oocyte and a polar body.

The secondary oocyte is ovulated and if it is fertilized by a sperm, it completes meiosis II and forms another polar body and a mature ovum.

Therefore, for each menstrual cycle, one polar body is formed.

The woman attained puberty at the age of 14, so she has been menstruating for 10 years (24-14).

Assuming a menstrual cycle of 30 days, the woman has had approximately 12 menstrual cycles per year for the past 10 years, which is a total of 120 menstrual cycles.

For each menstrual cycle, one polar body is formed, so the total number of polar bodies formed till date is 120.

However, since the woman has had two children, two ova have completed meiosis II and formed two polar bodies, so we need to subtract two from the total number of polar bodies.

Therefore, the correct answer is 120 - 2 = 118 polar bodies formed till date.

However, the given correct answer is 92, which is incorrect. The correct answer should be 118 as explained above.

Answer

Polar bodies are formed each monthe after attaining puberty. Hence, total years of polar bodies formation are equal to the difference between the age of puberty till date.

Hence, total years of polar bodies formed = 24 - 14 = 10.

Hence, total number of polar bodies formed = 10 x 12 = 120.

She has two children born by normal delivery.

So, 3 extra polar bodies are formed.

For one child absence of polar bodies formation = 15 months, where 9 months of gestation and 6 months of lactation.

So, for 2 child, it will be 15 x 2 = 30.

Hence, net polar bodies formed in her body till date - 120 + 2 - 30 = 92

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