Identify the actual dividing phase of mitotic cell division.

Options

A. S phase
B. G1 phase
C. G2 phase
D. M phase

Answer

To identify the actual dividing phase of mitotic cell division, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Cell Cycle**: The cell cycle consists of several phases that a cell goes through as it prepares for and undergoes division. The main phases include G1, S, G2, and M.

2. **Identify the Phases**:
- **G1 Phase**: The first gap phase where the cell grows and synthesizes proteins.
- **S Phase**: The synthesis phase where DNA replication occurs.
- **G2 Phase**: The second gap phase where the cell continues to grow and prepares for mitosis.
- **M Phase**: The mitotic phase where actual cell division occurs.

3. **Focus on the M Phase**: The M phase is specifically where mitosis takes place. This is the phase where the cell divides its copied DNA and cytoplasm to form two daughter cells.

4. **Conclusion**: Therefore, the actual dividing phase of mitotic cell division is the M phase.

### Final Answer:
The actual dividing phase of mitotic cell division is the **M phase**.

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