Nerve cell do not divide because they do not have

Options

A. nucleus
B. centrosome
C. Golgi body
D. mitochondria

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks why nerve cells do not divide. To answer this, we need to identify a specific cell organelle that is crucial for cell division.

2. **Identifying Key Organelles**: In the context of cell division, the centrosome is a significant organelle. It plays a vital role in the formation of spindle fibers, which are necessary for the separation of chromosomes during cell division.

3. **Role of Centrosomes**: Centrosomes are composed of two centrioles that are positioned at right angles to each other. These centrioles are essential for the proper arrangement and separation of chromosomes during the metaphase and anaphase stages of cell division.

4. **Nerve Cells and Centrosomes**: Nerve cells (neurons) do not possess centrioles, which means they lack centrosomes. This absence is the primary reason why nerve cells do not undergo division.

5. **Elongation of Nerve Cells**: Instead of dividing, nerve cells can elongate. This elongation occurs through processes such as synaptic or axon pruning, which allows them to grow longer without undergoing cell division.

6. **Conclusion**: Therefore, the reason nerve cells do not divide is that they do not have centrosomes.

### Final Answer:
Nerve cells do not divide because they do not have centrosomes.

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