E.coli are used in the production of

Options

A. Rifampicin
B. LH
C. Ecdysone
D. Interferon

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question refers to E. coli, which is short for Escherichia coli, a common bacterium used in biotechnology.

2. **Understand the Context**: E. coli is widely used in recombinant DNA (rDNA) technology for the production of various proteins. This includes therapeutic proteins and enzymes.

3. **Analyze the Options**: The options provided are rifampicin, LH (luteinizing hormone), egg dyson, and interferons. We need to determine which of these is produced using E. coli.

4. **Research the Proteins**:
- **Rifampicin**: An antibiotic, not produced in E. coli.
- **LH (Luteinizing Hormone)**: A hormone that can be produced in various systems, but not specifically noted for E. coli.
- **Egg Dyson**: Not a well-known protein associated with E. coli.
- **Interferons**: These are proteins that play a role in the immune response and have been successfully cloned and expressed in E. coli.

5. **Conclusion**: Based on the analysis, interferons are the only option that is known to be produced in E. coli through recombinant DNA technology.

6. **Final Answer**: Therefore, the correct answer is option 4: Interferons.

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