Which of the following is not a characteristic feature during mitosis in somatic cells?

Options

A. Disappearance of nucleolus
B. Chromosome movement
C. Synapsis
D. Spindle fibres

Answer

To determine which of the following is not a characteristic feature during mitosis in somatic cells, we will analyze each option provided:

1. **Disappearance of nucleolus**:
- During mitosis, specifically in the prophase stage, the nucleolus disappears as the chromatin condenses into visible chromosomes. This is a characteristic feature of mitosis.

2. **Chromosome movement**:
- Chromosome movement occurs during the anaphase stage of mitosis, where sister chromatids are pulled apart towards opposite poles of the cell. This is also a characteristic feature of mitosis.

3. **Spindle fibres**:
- The formation of spindle fibers occurs during prophase as well. These fibers are crucial for the movement of chromosomes during mitosis. This is a characteristic feature of mitosis.

4. **Synapses**:
- Synapsis refers to the pairing of homologous chromosomes that occurs during prophase I of meiosis, not mitosis. This involves the formation of a synaptonemal complex and is associated with genetic recombination. Therefore, this is not a characteristic feature of mitosis.

Based on the analysis above, the answer to the question is that **synapses** is not a characteristic feature during mitosis in somatic cells.

### Final Answer:
**Synapses** (Option 3) is not a characteristic feature during mitosis in somatic cells.