How many meiotic divisions are required for the formation of 100 pollen grains ?

Options

A. 100
B. 50
C. 25
D. 26

Explanation

To determine how many meiotic divisions are required for the formation of 100 pollen grains, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Meiosis in Pollen Formation**:
- Pollen grains are haploid cells produced from a diploid mother cell through meiotic divisions. Each meiotic division results in the formation of four haploid daughter cells (pollen grains).

2. **Identify the Output of One Meiotic Division**:
- One meiotic division of a single mother cell produces 4 pollen grains.

3. **Calculate the Number of Meiotic Divisions Needed for 100 Pollen Grains**:
- To find out how many meiotic divisions are needed to produce 100 pollen grains, we can set up the following equation:
\[ \text{Number of meiotic divisions} = \frac{\text{Total pollen grains}}{\text{Pollen grains per meiotic division}} = \frac{100}{4} \]

4. **Perform the Calculation**:
- Dividing 100 by 4 gives us:
\[ \frac{100}{4} = 25 \]

5. **Conclusion**:
- Therefore, 25 meiotic divisions are required to produce 100 pollen grains.

### Final Answer:
The number of meiotic divisions required for the formation of 100 pollen grains is **25**.

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