which does not occur in the cells of higher plants

Options

A. spindle
B. Centriole
C. Centromere
D. Cell plate

Answer

To answer the question "which does not occur in the cells of higher plants?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which of the given options is not found in the cells of higher plants. The options provided are spindle, centriole, centromere, and cell plate.

2. **Define Each Option**:
- **Spindle**: A structure that forms during cell division to separate chromosomes. It is present in both plant and animal cells.
- **Centriole**: A cylindrical organelle involved in cell division, specifically in the formation of the spindle. It is typically found in animal cells and some lower plants, but not in higher plants.
- **Centromere**: The region of a chromosome where the two sister chromatids are joined together. This structure is present in all eukaryotic cells, including higher plants.
- **Cell Plate**: A structure that forms during the cytokinesis of plant cells, leading to the formation of a new cell wall between the daughter cells. This is specific to plant cells.

3. **Analyze the Options**:
- The spindle is present in higher plants.
- The centromere is present in higher plants.
- The cell plate is specific to plant cells.
- The centriole is absent in higher plants.

4. **Conclusion**: Since the centriole is not found in the cells of higher plants, the correct answer to the question is **centriole** (Option B).

### Final Answer:
The correct answer is **B) Centriole**.

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