The number of male gametes and the number of meiotic divisions required for the formation of 100 seeds in a typical angiosperm is

Options

A. 100 male gametes and 125 meiotic division
B. 200 male gametes and 125 meiotic divisions
C. 100 male gametes and 25 meiotic divisions
D. 200 male gametes and 25 meiotic divisions

Answer

To solve the question regarding the number of male gametes and the number of meiotic divisions required for the formation of 100 seeds in a typical angiosperm, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Male Gametes and Seeds**:
- In angiosperms, each seed is formed from one male gamete (pollen) and one female gamete (ovule). Therefore, for 100 seeds, we need 100 male gametes.

**Calculation**:
- Number of male gametes = Number of seeds = 100

2. **Understanding Meiotic Divisions**:
- Each meiotic division results in the formation of four microspores (which develop into male gametes). Therefore, to find out how many meiotic divisions are needed to produce 100 male gametes, we need to divide the total number of male gametes by the number of microspores produced per meiotic division.

**Calculation**:
- Number of meiotic divisions needed = Total male gametes / Microspores per meiotic division
- Number of meiotic divisions = 100 male gametes / 4 microspores per meiotic division = 25 meiotic divisions

3. **Final Result**:
- The number of male gametes required for the formation of 100 seeds is 100, and the number of meiotic divisions required is 25.

### Summary:
- **Number of Male Gametes**: 100
- **Number of Meiotic Divisions**: 25

### Answer:
The correct option is 100 male gametes and 25 meiotic divisions.

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