With the help of labelled diagrams, depict the stages of a microspore maturing into a pollen grain.

Explanation

To depict the stages of a microspore maturing into a pollen grain, we will go through the process step by step, along with labeled diagrams for each stage.

### Step 1: Structure of the Anther
- **Diagram**: Draw a cross-section of an anther, labeling the following parts: Epidermis, Endothelium, Middle Layer, Tapetum, Sporogenous Tissue, and Microsporangia (Pollen Sacs).
- **Explanation**: The anther consists of several layers, including the epidermis, endothelium, and tapetum, which support the development of microspores within the microsporangia.

### Step 2: Formation of Microspore Tetrad
- **Diagram**: Illustrate the sporogenous tissue within the anther, showing the microspore mother cells undergoing meiosis to form a microspore tetrad (four microspores).
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