Nuclear envelope assembles around the chromosome clusters at

Options

A. Late anaphase
B. Telophase
C. Early prophase
D. Late metaphase

Answer

To answer the question, "Nuclear envelope assembles around the chromosome clusters at," we need to identify the correct phase of cell division where this event occurs.

### Step-by-Step Solution:

1. **Understanding Cell Division Phases**:
- Cell division consists of several phases: prophase, metaphase, anaphase, and telophase. Each phase has distinct events that occur.

2. **Identifying Key Events**:
- **Prophase**: The nuclear envelope begins to break down, and chromosomes condense.
- **Metaphase**: Chromosomes align at the cell's equator, and the nuclear envelope is not present.
- **Anaphase**: Sister chromatids are pulled apart towards opposite poles of the cell.
- **Telophase**: The nuclear envelope reforms around the separated chromosome sets.

3. **Focusing on Telophase**:
- During telophase, the chromosomes reach the poles of the cell, and the nuclear envelope starts to reassemble around these chromosome clusters. This marks the end of nuclear division.

4. **Conclusion**:
- The nuclear envelope assembles around the chromosome clusters specifically during **telophase**.

### Final Answer:
The nuclear envelope assembles around the chromosome clusters at **telophase**.

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