Conditionl of having a number of nuclei in a muscle fibre is

Options

A. Polykaryon
B. Coenocytic
C. Syncytial
D. Endoreduplication .

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question is asking for the term that describes the condition of having multiple nuclei in a muscle fiber.

2. **Identifying the Options**: The options provided include terms such as polykaryon, syncytial, sinusitic, and endoreduplication. We need to analyze each term to find the correct one.

3. **Analyzing 'Polykaryon'**: The term "polykaryon" refers to a cell that contains multiple nuclei. However, it is not specifically associated with muscle fibers. Therefore, this option is incorrect.

4. **Analyzing 'Sinusitic'**: The term "sinusitic" also refers to a multinucleate condition but is not specifically related to muscle fibers. This option is also incorrect.

5. **Analyzing 'Syncytial'**: The term "syncytial" is the correct term associated with muscle fibers. It describes a multinucleated cell that results from the fusion of multiple uninuclear cells. This fusion occurs without cytokinesis, leading to the formation of muscle fibers that have multiple nuclei. Syncytial cells also have specialized membranes with gap junctions, which are important for electrical synchronization in muscle tissues.

6. **Analyzing 'Endoreduplication'**: The term "endoreduplication" refers to the replication of the nuclear genome without mitosis, leading to an increase in nuclear gene content. This term does not describe the condition of having multiple nuclei in muscle fibers, making it incorrect.

7. **Conclusion**: The correct answer to the question is that the condition of having a number of nuclei in a muscle fiber is called "syncytial."

**Final Answer**: The condition of having a number of nuclei in a muscle fiber is called "syncytial."

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