A given sample of somatic cell was treated with chemical X. it was found that chemical X inhibits chromatid separation . During somatic cell division process , the treated cell will reach which stage of division before being interrupted ?

Options

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

Answer

To solve the question, we need to understand the stages of somatic cell division, particularly focusing on when chromatid separation occurs and how the chemical X affects this process.

### Step-by-Step Solution:

1. **Understanding Somatic Cell Division**: Somatic cell division occurs through a process called mitosis, which consists of several stages: prophase, metaphase, anaphase, telophase, and cytokinesis.

2. **Identifying Chromatid Separation**: Chromatid separation occurs during the anaphase stage of mitosis. During anaphase, the sister chromatids are pulled apart to opposite poles of the cell.

3. **Effect of Chemical X**: The question states that chemical X inhibits chromatid separation. This means that the chemical will prevent the cell from progressing past the anaphase stage where the chromatids are supposed to separate.

4. **Determining the Last Completed Stage**: Since chromatid separation is inhibited at anaphase, the cell will not be able to complete this stage. Therefore, the last stage that the cell will reach before being interrupted is the metaphase stage. In metaphase, the chromosomes are aligned at the metaphase plate, and the cell is ready to proceed to anaphase.

5. **Conclusion**: The treated cell will reach the metaphase stage before being interrupted by chemical X.

### Final Answer:
The treated cell will reach the **metaphase** stage before being interrupted.

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