Male gametes in angiosperms are formed by the division of

Options

A. vegetative cell
B. microspore mother cell
C. microspore
D. generative cell

Answer

To answer the question "Male gametes in angiosperms are formed by the division of," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure**: In angiosperms, the male gametes are produced within the pollen grains. The process begins with the microspore mother cell, which is diploid (2n).

2. **Meiosis of Microspore Mother Cell**: The microspore mother cell undergoes meiosis, a type of cell division that reduces the chromosome number by half. This results in the formation of four haploid microspores (1n).

3. **Formation of Pollen Grains**: These haploid microspores can either remain as individual cells or can be grouped together in a tetrad. Each microspore will eventually develop into a pollen grain.

4. **Mitosis of Microspores**: Each haploid microspore undergoes mitosis. This division results in two types of cells within the pollen grain: the vegetative cell and the generative cell.

5. **Role of the Generative Cell**: The generative cell is responsible for forming the male gametes. It undergoes further mitotic division to produce two male gametes (sperm cells).

6. **Conclusion**: Therefore, the male gametes in angiosperms are formed specifically by the division of the generative cell.

### Final Answer:
The correct answer is that male gametes in angiosperms are formed by the division of the **generative cell**.

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