The division of centromere is absent in

Options

A. Anaphase
B. Anaphase - I
C. Anaphase - II
D. All of these

Answer

To solve the question "The division of centromere is absent in," we need to analyze the different phases of cell division (mitosis and meiosis) and understand the behavior of centromeres during these phases.

### Step-by-Step Solution:

1. **Understanding Centromere**:
- The centromere is the region of a chromosome where the two sister chromatids are joined together. It plays a crucial role during cell division as it is where the kinetochores form, allowing spindle fibers to attach and pull the chromatids apart.

2. **Analyzing Anaphase**:
- **Anaphase (Mitosis)**: In this phase, sister chromatids are pulled apart towards opposite poles of the cell. As the chromatids separate, the centromeres also divide. Therefore, the division of the centromere occurs in this phase.

3. **Analyzing Anaphase I (Meiosis)**:
- **Anaphase I**: In this phase, homologous chromosomes (not sister chromatids) are separated and move to opposite poles. Since the sister chromatids remain attached at their centromeres, there is no division of the centromere in this phase. Thus, the division of centromere is absent in Anaphase I.

4. **Analyzing Anaphase II (Meiosis)**:
- **Anaphase II**: This phase is similar to anaphase in mitosis. Here, the sister chromatids are separated and pulled towards opposite poles. Therefore, the centromeres divide in this phase as well.

5. **Conclusion**:
- Based on the analysis, the division of the centromere is absent in **Anaphase I** of meiosis, where only homologous chromosomes are separated, and the sister chromatids remain attached.

### Final Answer:
The division of centromere is absent in **Anaphase I**.