Mycoplasma is the causative agent for one of the following diseases

Options

A. Vein yellowing
B. Pneumonia
C. Dengue
D. Tobacco mosaic

Answer

**Step-by-Step Solution:**

1. **Understanding Mycoplasma**: Mycoplasma are the smallest living organisms known. They are unique because they lack a cell wall, which gives them no definite shape.

2. **Pathogenic Nature**: Mycoplasma are known to be highly pathogenic, meaning they can cause diseases in both plants and animals.

3. **Identification of Mycoplasma**: Mycoplasma are also referred to as PPLO (Pleuropneumonia-like organisms). This name hints at their association with respiratory diseases.

4. **Analyzing the Options**:
- **Vein Yellowing**: This is a viral disease affecting plants, so it is not caused by Mycoplasma.
- **Pneumonia**: This disease is indeed caused by Mycoplasma, specifically a type known as Mycoplasma pneumoniae.
- **Dengue**: This is a viral disease transmitted by mosquitoes, not caused by Mycoplasma.
- **Tobacco Mosaic**: This is also a viral disease caused by the Tobacco Mosaic Virus, thus not related to Mycoplasma.

5. **Conclusion**: Among the provided options, the only disease caused by Mycoplasma is pneumonia. Therefore, the correct answer is pneumonia.

**Final Answer**: Mycoplasma is the causative agent for pneumonia.

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