Metaphase II of meiosis is just like metaphase of mitosis except that

Options

A. there are half as many chromosomes
B. nucleolus is absent
C. genes have become doubled
D. synaptinemal complex is present

Answer

**Step-by-Step Solution:**

1. **Understanding Metaphase II of Meiosis:**
- Metaphase II is the second division of meiosis, which occurs after meiosis I. In this phase, the chromosomes line up at the metaphase plate.

2. **Comparison with Mitosis:**
- In mitosis, the cell divides to produce two identical daughter cells, each with the same number of chromosomes as the original cell. During metaphase of mitosis, the chromosomes are also aligned at the metaphase plate.

3. **Chromosome Number:**
- The key difference in metaphase II of meiosis compared to metaphase of mitosis is the number of chromosomes present. In meiosis II, the cells are haploid, meaning they contain half the number of chromosomes compared to the diploid cells in mitosis.

4. **Analyzing the Options:**
- Option A: There are half as many chromosomes. (This is correct as meiosis II results in haploid cells.)
- Option B: Nucleolus is absent. (This is not a distinguishing feature between the two phases.)
- Option C: Genes have become doubled. (This is incorrect; the genetic material does not double in metaphase II.)
- Option D: Synaptonemal complex is present. (This is not applicable to metaphase II; it is relevant to prophase I of meiosis.)

5. **Conclusion:**
- Therefore, the correct answer is **Option A: There are half as many chromosomes.**

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