The division in which chromosomes do not differentiate is

Options

A. Amitosis
B. Free nuclear division
C. Intranuclear division
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about a type of cell division where chromosomes do not differentiate. This means that the chromatin fibers remain in their less condensed form and do not form distinct chromosomes.

2. **Identifying Types of Cell Division**: There are several types of cell division, including mitosis, meiosis, and amytosis. In typical mitosis and meiosis, chromatin condenses to form visible chromosomes before the cell divides.

3. **Analyzing Mitosis and Meiosis**: In both mitosis and meiosis, chromatin fibers condense into chromosomes. Therefore, these processes cannot be the answer since they involve the differentiation of chromosomes.

4. **Exploring Amytosis**: Amytosis is a type of cell division that occurs without the formation of spindle fibers. It is primarily found in primitive organisms like bacteria and can also occur in certain human cells, such as fetal membranes and liver cells.

5. **Characteristics of Amytosis**: In amytosis, the nucleus divides unequally, and then the cytoplasm divides. Importantly, during this process, the chromatin does not condense into distinct chromosomes, which aligns with the question's requirement.

6. **Conclusion**: Since amytosis is the only type of division where chromosomes do not differentiate and remain as chromatin fibers, the correct answer is **amytosis**.

**Final Answer**: The division in which chromosomes do not differentiate is **amytosis**.

---