A `36` year old female have 2 child. lf menses start at the age of 12 year then calculate the number of secondary cocyte and ova on fill age :-

Options

A. `288` secondary oocyte and `2` ova
B. `258` secondary oocyte and `2` ova
C. `252` secondary oocyte and `12` ova
D. `248` secondary oocyte and `2` ova

Answer

To solve the problem of calculating the number of secondary oocytes and ova for a 36-year-old female who started menstruating at age 12 and has had 2 children, we can follow these steps:

### Step-by-Step Solution:

1. **Determine the Duration of Menstrual Cycles**:
- The female started menstruating at age 12 and is currently 36 years old.
- Duration of menstruation = 36 years - 12 years = 24 years.

2. **Calculate the Total Number of Menstrual Cycles**:
- The menstrual cycle occurs approximately every 28 days, which translates to about 12 cycles per year.
- Total cycles over 24 years = 24 years × 12 cycles/year = 288 cycles.

3. **Account for Pregnancies**:
- The female has had 2 children. Each pregnancy typically lasts about 9 months.
- Total months of pregnancy = 2 children × 9 months/child = 18 months.

4. **Account for Lactation Period**:
- After each pregnancy, there is usually a lactation period. Assuming 6 months of lactation for each child:
- Total lactation period = 2 children × 6 months/child = 12 months.

5. **Calculate Total Non-Cycle Months**:
- Total months during which no secondary oocytes are released = 18 months (pregnancy) + 12 months (lactation) = 30 months.

6. **Calculate the Effective Menstrual Cycles**:
- Total months in 24 years = 24 years × 12 months/year = 288 months.
- Effective months of menstruation = 288 months - 30 months (non-cycle months) = 258 months.

7. **Determine the Number of Secondary Oocytes**:
- Since one secondary oocyte is released during each menstrual cycle, the number of secondary oocytes released = 258 secondary oocytes.

8. **Determine the Number of Ova**:
- Each time a secondary oocyte is fertilized, it becomes an ovum. Since the female has had 2 children, the number of ova produced = 2.

### Final Answer:
- **Number of Secondary Oocytes**: 258
- **Number of Ova**: 2

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