Nerve cells do not divide because they do not have

Options

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

Answer

### Step-by-Step Solution

1. **Understanding Nerve Cells**: Nerve cells, also known as neurons, are specialized cells that are part of the nervous system. They are responsible for transmitting signals between different parts of the body and the brain.

2. **Cell Division Basics**: In general, cells divide through a process called mitosis. During mitosis, the cell replicates its chromosomes and divides into two genetically identical daughter cells.

3. **Role of Centrosomes**: Centrosomes are organelles that play a crucial role in cell division. They serve as the main microtubule organizing centers in animal cells. Microtubules are essential for the formation of the spindle fibers that separate chromosomes during mitosis.

4. **Structure of Centrosomes**: A centrosome consists of two centrioles, which are cylindrical structures made up of microtubules. Each centriole is arranged in a specific pattern, and they lie at right angles to each other.

5. **Why Nerve Cells Do Not Divide**: Nerve cells do not divide because they lack centrosomes. Without centrosomes, the necessary microtubules cannot be formed, which means that the process of mitosis cannot occur. As a result, nerve cells do not undergo cell division.

6. **Conclusion**: Therefore, the reason nerve cells do not divide is that they lack centrosomes, which are essential for the formation of microtubules required for mitosis.