Triploid tissue in angiosperms is:

Options

A. Nucellus
B. Endosperm
C. Endothecium
D. Tapetum

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the triploid tissue found in angiosperms (flowering plants).

2. **Identifying the Options**: The options provided are:
- Nucellus
- Endosperm
- Endothecium
- Tapetum

3. **Analyzing Each Option**:
- **Nucellus**: This is the tissue that surrounds the embryo sac in the ovule. It is not triploid; it is diploid.
- **Endosperm**: This is the tissue that provides nutrition to the developing embryo. It is formed by the fusion of one male gamete with two polar nuclei from the embryo sac, resulting in a triploid (3n) tissue.
- **Endothecium**: This is a layer of tissue in the anther that helps in the dehiscence (opening) of the anther. It is not triploid.
- **Tapetum**: This is the innermost layer of the anther that nourishes the developing pollen grains. It is also not triploid.

4. **Conclusion**: The only triploid tissue among the options is the **endosperm**.

5. **Final Answer**: Therefore, the triploid tissue in angiosperms is **endosperm**.

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