Replication of centriole occurs during

Options

A. interphase
B. prophase
C. early telophase
D. late telophase

Answer

**Step-by-Step Solution:**

1. **Understanding Centrioles**: Centrioles are cylindrical cell organelles that play a crucial role in cell division by forming spindle fibers, which help in the segregation of chromosomes during cell division.

2. **Cell Division and Interphase**: The cell cycle consists of interphase and the mitotic phase. Interphase is divided into three phases: G1 (Gap 1), S (Synthesis), and G2 (Gap 2). During interphase, the cell prepares for division.

3. **Replication of Centrioles**: The replication of centrioles occurs specifically during the G2 phase of interphase. This is when the cell prepares for mitosis by duplicating its organelles, including centrioles.

4. **Role of Centrioles in Mitosis**: After replication in G2, the centrioles move to opposite poles of the cell during prophase and help in forming the spindle fibers that will attach to the chromosomes during metaphase.

5. **Conclusion**: Therefore, the replication of centrioles occurs during the G2 phase of interphase.

**Final Answer**: The replication of centrioles occurs during the G2 phase of interphase.

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