The microtubules from opposite poles of the spindle get attached to the kinetochores of sister chromatids in
Or
At what phase of meiosis are there two cells, each with sister chromatids aligned at the spindle equator

Options

A. Metaphase II
B. Metaphase I
C. Anaphase II
D. None of these

Answer

To answer the question regarding the phase of meiosis where microtubules from opposite poles of the spindle attach to the kinetochores of sister chromatids, we will analyze the stages of meiosis, particularly focusing on metaphase II.

### Step-by-Step Solution:

1. **Understanding Meiosis**: Meiosis consists of two rounds of division: meiosis I and meiosis II. Each of these rounds has distinct phases: prophase, metaphase, anaphase, and telophase.

2. **Identifying Metaphase II**: In meiosis II, the cells that result from meiosis I (which are haploid) undergo a second division. During metaphase II, the chromosomes line up at the equatorial plane of the cell.

3. **Role of Kinetochores**: Each chromosome has a region called the centromere, where the kinetochores are located. The kinetochores are protein structures that attach to the microtubules of the spindle apparatus.

4. **Microtubule Attachment**: During metaphase II, microtubules from opposite spindle poles attach to the kinetochores of sister chromatids. This ensures that when the chromatids are pulled apart, each new cell will receive one chromatid from each chromosome.

5. **Conclusion**: Therefore, the phase of meiosis where there are two cells, each with sister chromatids aligned at the spindle equator, and where microtubules from opposite poles attach to the kinetochores of sister chromatids is **metaphase II**.

### Final Answer:
The correct answer is **metaphase II**.

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