In telophase of mitosis

Options

A. Chromosomes get arranged in middle of cell
B. Chromosome fibres become clear
C. Chromosomes aggregate at opposite poles to form daughter nuclei
D. Nuclear envelope disappears

Answer

### Step-by-Step Solution:

1. **Understanding Telophase**:
- Telophase is the final stage of mitosis, which is a type of cell division. It follows anaphase and is characterized by the reformation of the nuclear envelope around the separated sets of chromosomes.

2. **Key Events in Telophase**:
- **Reappearance of Nuclear Envelope**: During telophase, the nuclear envelope reforms around each set of chromosomes at opposite poles of the cell.
- **Chromatin Decondensation**: The chromosomes, which were condensed during earlier phases, begin to decondense back into chromatin fibers.
- **Reappearance of Cell Organelles**: Organelles that may have been disassembled during mitosis start to reappear.

3. **Evaluating the Statements**:
- **Statement 1**: "Chromosomes get arranged in the middle of the cell."
- This is incorrect; chromosomes are at the poles, not in the middle.
- **Statement 2**: "Chromosome fibers become clear."
- This is misleading; while they do decondense, they are not simply "becoming clear."
- **Statement 3**: "Chromosomes aggregate at opposite poles to form daughter nuclei."
- This is correct; during telophase, chromosomes do move to opposite poles and contribute to the formation of daughter nuclei.
- **Statement 4**: "Nuclear envelope disappears."
- This is incorrect; the nuclear envelope reappears during telophase.

4. **Conclusion**:
- The correct statement regarding telophase of mitosis is: "Chromosomes aggregate at opposite poles to form daughter nuclei."