The chromosomes cluster at opposite poles and their identity is lost as discrete elements during

Options

A. Telophase
B. Anaphase
C. Metaphase
D. Prophase

Answer

To solve the question, "The chromosomes cluster at opposite poles and their identity is lost as discrete elements during," we need to identify the correct phase of the cell cycle where this phenomenon occurs. Let's break down the solution step by step.

### Step-by-Step Solution:

1. **Understanding the Question:**
- The question asks about a specific phase in the cell cycle where chromosomes cluster at opposite poles and lose their distinct identity.

2. **Identifying the Phases of Mitosis:**
- The cell cycle includes several phases: prophase, metaphase, anaphase, and telophase. Each phase has distinct characteristics regarding the behavior of chromosomes.

3. **Analyzing Each Phase:**
- **Prophase:** During prophase, chromosomes condense and become visible, but they are not yet at the poles. The nucleolus disappears, and the mitotic spindle begins to form.
- **Metaphase:** In metaphase, chromosomes align at the equatorial plane of the cell, not at the poles. They are still distinct and visible.
- **Anaphase:** In anaphase, sister chromatids are pulled apart toward opposite poles, but they are still identifiable as separate entities until they reach the poles.
- **Telophase:** In telophase, chromosomes reach the opposite poles of the cell. At this stage, they begin to de-condense, and their distinct identities are lost as they start to form a new nuclear envelope.

4. **Conclusion:**
- The correct answer is **telophase**, as this is the phase where chromosomes cluster at opposite poles and lose their identity as discrete elements.

### Final Answer:
The chromosomes cluster at opposite poles and their identity is lost as discrete elements during **telophase**.

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