`G_2` phase is pre-mitotic phase characterised by increase in nuclear volume

Answer

### Step-by-Step Solution:

1. **Understanding the Cell Cycle**:
- The cell cycle consists of several phases: G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M (Mitosis).
- Each phase has specific functions crucial for cell division.

2. **Identifying the G2 Phase**:
- The G2 phase is the third phase of the cell cycle, following the S phase.
- It is a pre-mitotic phase, meaning it occurs before the cell enters mitosis (M phase).

3. **Characteristics of the G2 Phase**:
- During the G2 phase, the cell continues to grow and prepares for mitosis.
- There is an increase in nuclear volume as the cell prepares for division.
- The cell checks for any errors in the duplicated DNA and makes necessary repairs.
- New proteins are synthesized that are essential for mitosis.

4. **Conclusion**:
- The statement that the G2 phase is a pre-mitotic phase characterized by an increase in nuclear volume is accurate.
- This phase is crucial for ensuring that the cell is ready to divide correctly and that all genetic material is intact.