Meiosis II, differs from normal mitosis - except

Options

A. Because it always occurs in diploid cell
B. It is not preceded by interphase
C. The two chromatids of a chromosome are often dissimilar
D. The daughter cells produced after meiosis II are not similar to each other or mother cell

Answer

To solve the question "Meiosis II differs from normal mitosis - except", we will analyze each option provided and determine which statement is correct regarding the differences between Meiosis II and normal mitosis.

### Step-by-Step Solution:

1. **Understanding Meiosis II and Mitosis**:
- Meiosis II is the second division in the meiosis process, which follows Meiosis I. It is similar to mitosis in that it separates sister chromatids.
- Mitosis is a process of cell division that results in two identical daughter cells, each with the same number of chromosomes as the parent cell.

2. **Analyzing the Options**:
- **Option 1: "Because it always occurs in the diploid cell."**
- This statement is incorrect. Meiosis II occurs in haploid cells (after Meiosis I), while mitosis occurs in diploid cells. Therefore, this option does not correctly describe a difference.

- **Option 2: "It is not preceded by interphase."**
- This statement is correct. Meiosis II is not preceded by a full interphase; instead, it follows a short phase called interkinesis. Mitosis, however, is preceded by interphase. This option correctly identifies a difference.

- **Option 3: "The two chromatids of the chromosome are often dissimilar."**
- This statement is incorrect. In both meiosis and mitosis, the sister chromatids are identical. Thus, this option does not correctly describe a difference.

- **Option 4: "Daughter cells produced after meiosis II are not similar to each other or the mother cell."**
- This statement is correct. Meiosis II results in daughter cells that are genetically different from each other and from the original mother cell due to the process of crossing over and independent assortment. In contrast, mitosis produces identical daughter cells.

3. **Conclusion**:
- The correct answer to the question is **Option 1**, as it does not accurately describe a difference between Meiosis II and mitosis. The other options highlight valid differences.

### Final Answer:
Meiosis II differs from normal mitosis - except **Option 1: "Because it always occurs in the diploid cell."**