During different stages of cell division, cells show structured____ in place of the nucleus.

Answer

**Step-by-Step Solution:**

1. **Understanding Cell Division**: Cell division occurs in various stages, primarily during the M phase (mitosis), where the cell prepares to divide into two daughter cells.

2. **Phases of Cell Cycle**: The cell cycle consists of several phases: G0, G1, S, G2, and M phase. During the M phase, the actual division of the cell takes place.

3. **Role of the Nucleus**: The nucleus contains the genetic material in the form of chromosomes. During cell division, the nuclear membrane plays a crucial role in protecting these chromosomes.

4. **Disintegration of Nuclear Membrane**: As the cell enters the M phase, the nuclear membrane begins to disintegrate. This allows the chromosomes, which are tightly packed and visible during this phase, to be seen clearly.

5. **Visible Structures**: During the different stages of cell division, particularly in mitosis, the chromosomes are structured and organized, making them visible under a microscope.

6. **Filling the Blank**: Therefore, during different stages of cell division, cells show structured **chromosomes** in place of the nucleus.

**Final Answer**: During different stages of cell division, cells show structured **chromosomes** in place of the nucleus.

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