Condensation of chromosome with visible centromere occurs during

Options

A. `G_(1)`-phase
B. S-phase
C. `G_(2)`-phase
D. M-phase

Answer

To answer the question "Condensation of chromosome with visible centromere occurs during," we can break down the process step by step:

### 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 (Mitotic) phase. The G1, S, and G2 phases together are known as interphase.

2. **Identifying the Phases of the M Phase**:
- The M phase is where cell division occurs and is further divided into four stages: prophase, metaphase, anaphase, and telophase.

3. **Focusing on Prophase**:
- During prophase, the chromatin condenses into visible chromosomes. Each chromosome consists of two sister chromatids joined at a region called the centromere.

4. **Visible Centromere**:
- The centromere becomes visible during prophase as the chromosomes condense. This is a key characteristic of this phase.

5. **Conclusion**:
- Therefore, the condensation of chromosomes with visible centromeres occurs specifically during the prophase of the M phase.

### Final Answer:
The condensation of chromosome with visible centromere occurs during **prophase** of the M phase.

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