Cyanobacteria do not possess

Options

A. Gene recombinations
B. Flagella
C. Plasmids
D. Pigments

Answer

To answer the question "Cyanobacteria do not possess," we will analyze the options provided and determine which one is correct based on the characteristics of cyanobacteria.

### Step-by-Step Solution:

1. **Understanding Cyanobacteria**:
- Cyanobacteria, also known as blue-green algae, are a group of photosynthetic bacteria. They are capable of photosynthesis and can fix atmospheric nitrogen.

2. **Reviewing the Options**:
- The options given are:
1. Gene recombination
2. Flagella
3. Plasmids
4. Pigments

3. **Analyzing Each Option**:
- **Gene Recombination**: Cyanobacteria can exchange genetic material, which allows for genetic recombination. Therefore, they do possess this ability.
- **Flagella**: Cyanobacteria lack flagella, which are structures that aid in movement. This is a characteristic feature of cyanobacteria.
- **Plasmids**: Cyanobacteria contain plasmids, which are small, circular DNA molecules that can replicate independently of chromosomal DNA.
- **Pigments**: Cyanobacteria possess pigments, such as chlorophyll a, which are essential for photosynthesis.

4. **Conclusion**:
- Based on the analysis, the correct answer is that cyanobacteria do not possess **flagella**.

### Final Answer:
Cyanobacteria do not possess **flagella**.

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