In some organisms like certain fungi and algae, cells undergoing mitosis repeatedly without subsequently undergoing cytokinesis. What would result from it?

Options

A. Decrease in the chromosome number
B. Decrease in the DNA molecules
C. Formation of syncytium
D. Multicellularity

Answer

To answer the question about what happens when cells undergo mitosis repeatedly without cytokinesis in certain organisms like fungi and algae, we can break down the solution step by step.

### Step-by-Step Solution:

1. **Understanding Mitosis and Cytokinesis**:
- Mitosis is the process where a single cell divides its nucleus and genetic material to form two nuclei.
- Cytokinesis is the subsequent process where the cytoplasm divides, resulting in two separate daughter cells.

2. **Mitosis Without Cytokinesis**:
- In some organisms, such as certain fungi and algae, cells can undergo multiple rounds of mitosis without the accompanying cytokinesis. This means that while the nucleus divides, the cytoplasm does not divide.

3. **Formation of a Multinucleate Cell**:
- As a result of repeated mitosis without cytokinesis, a single cell can end up containing multiple nuclei. This condition leads to the formation of a multinucleate cell.

4. **Term for Multinucleate Cells**:
- The structure formed by this process is known as a "syncytium." A syncytium is characterized by having multiple nuclei within a shared cytoplasm, effectively making it a single cell with many nuclei.

5. **Conclusion**:
- Therefore, when cells undergo mitosis repeatedly without cytokinesis, the result is the formation of a multinucleate structure known as a syncytium.

### Final Answer:
The result of cells undergoing mitosis repeatedly without subsequently undergoing cytokinesis in certain fungi and algae is the formation of a multinucleate cell called a syncytium.

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