Unique features of prokaryotic cells are the presence of

Options

A. Mesosomes
B. Inclusion bodies
C. Plasmids
D. All the above

Answer

### Step-by-Step Solution:

1. **Understanding Prokaryotic Cells**:
- Prokaryotic cells are characterized by the absence of a true nucleus. Instead, they have a region called the nucleoid where their genetic material is located.

2. **Identifying Unique Features**:
- The question asks for unique features of prokaryotic cells. We will analyze the options given: mesosomes, inclusion bodies, and plasmids.

3. **Mesosomes**:
- Mesosomes are extensions of the cell membrane found in prokaryotic cells.
- They play a role in the synthesis of the cell wall and are also involved in the replication of DNA.

4. **Inclusion Bodies**:
- Inclusion bodies are storage structures within prokaryotic cells.
- They store various substances, including glycogen, which serves as a reserve of energy.

5. **Plasmids**:
- Plasmids are small, circular, double-stranded DNA molecules that are separate from the chromosomal DNA in prokaryotic cells.
- They often carry genes that provide bacteria with genetic advantages, such as antibiotic resistance.

6. **Conclusion**:
- Since all three features (mesosomes, inclusion bodies, and plasmids) are present in prokaryotic cells, the correct answer is "all of the above."

### Final Answer:
The unique features of prokaryotic cells are the presence of mesosomes, inclusion bodies, plasmids, and therefore, the correct answer is **all of the above**.

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