Development of microsporangium in angiosperms and gymnosperms is of typical:

Options

A. Eusporangiate type
B. Leptosporangiate type
C. Monosporic type
D. Tetrasporic type.

Answer

**Step-by-Step Solution:**

1. **Understanding Microsporangium**: Microsporangium is a structure in plants that produces microspores, which develop into male gametophytes (pollen grains). It is essential to understand its development in both angiosperms (flowering plants) and gymnosperms (non-flowering plants).

2. **Types of Microsporangium Development**: There are two main types of microsporangium development: eusporangiate and leptosporangiate.

- **Eusporangiate Type**: This type involves a group of initial cells that divide to form the microsporangium. In this case, multiple cells contribute to the formation of the structure.

- **Leptosporangiate Type**: This type involves a single initial cell that divides to form the microsporangium. Here, only one cell is responsible for the development.

3. **Development in Angiosperms and Gymnosperms**: Both angiosperms and gymnosperms exhibit the eusporangiate type of microsporangium development. This means that in both groups, the microsporangium is formed from a group of initial cells rather than just one.

4. **Conclusion**: Based on the understanding of the types of microsporangium development and the characteristics of angiosperms and gymnosperms, we conclude that the development of microsporangium in both groups is of the eusporangiate type.

5. **Final Answer**: The correct answer to the question is option A, which states that the development of microsporangium in angiosperms and gymnosperms is of the eusporangiate type.

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