Organisms , known as Jokers of the plant kingdom, are characterised by :

Options

A. presence of mesosomes and absence of flagella
B. presence of flagella and absence of cell wall
C. absence of cell wall and presence of mesosomes
D. absence of flagella and cell wall

Answer

To answer the question about the organisms known as "jokers of the plant kingdom," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organisms**: The term "jokers of the plant kingdom" refers to Mycoplasma. These are unique organisms that exhibit characteristics different from typical plants.

2. **Understand the Characteristics of Mycoplasma**:
- Mycoplasma are known for their lack of a cell wall, which allows them to change shape according to their environment.
- They are also characterized by their small size and simple structure.

3. **Evaluate the Given Options**:
- **Option 1**: Presence of mesosomes and absence of flagella.
- This is incorrect because mesosomes are not present in Mycoplasma, and they also lack flagella.
- **Option 2**: Presence of flagella and absence of cell wall.
- This is also incorrect since Mycoplasma do not have flagella.
- **Option 3**: Absence of cell wall and presence of mesosomes.
- This is incorrect because while Mycoplasma do lack a cell wall, they do not have mesosomes.
- **Option 4**: Absence of flagella and cell wall.
- This is the correct option as Mycoplasma do not have either a cell wall or flagella.

4. **Conclusion**: The correct answer to the question is option 4: "Absence of the flagella and the cell wall."

### Final Answer:
The organisms known as jokers of the plant kingdom are characterized by the absence of both flagella and cell wall.

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