Which of the following does not code for any proteins ?

Options

A. Micro-satellites
B. Exons
C. Mini-satellites
D. More than one option is correct

Answer

To determine which of the following does not code for any proteins, we need to analyze the given options: microsatellites, exons, and minisatellites.

### Step-by-Step Solution:

1. **Understanding Exons**:
- Exons are the coding regions of a gene that are transcribed into mRNA and then translated into proteins. Therefore, exons do code for proteins.
- **Conclusion**: Exons do code for proteins.

2. **Understanding Microsatellites**:
- Microsatellites are short, repetitive sequences of DNA. They can be found in both coding and non-coding regions of the genome. However, they do not typically code for proteins.
- **Conclusion**: Microsatellites do not code for proteins.

3. **Understanding Minisatellites**:
- Minisatellites are also repetitive sequences of DNA, similar to microsatellites, but they are longer. Like microsatellites, they can be found in both coding and non-coding regions and do not code for proteins.
- **Conclusion**: Minisatellites do not code for proteins.

4. **Final Conclusion**:
- Since both microsatellites and minisatellites do not code for proteins, the correct answer to the question "Which of the following does not code for any proteins?" includes both microsatellites and minisatellites.

### Answer:
- The options that do not code for any proteins are **microsatellites** and **minisatellites**.