mRNA was discovered by

Options

A. Brenner and Jacob
B. Jacob and Monod
C. Watson and Crick
D. Payen and Persoz.

Answer

**Step-by-Step Solution:**

1. **Understanding mRNA**: mRNA stands for messenger RNA, which is a type of RNA that carries genetic information from DNA to the ribosome, where proteins are synthesized.

2. **Identifying the Discoverers**: The question asks who discovered mRNA. The options provided are:
- Breener and Jacob
- Jacob and Monod
- Watson and Crick
- Payne and Persaus

3. **Analyzing the Options**:
- **Breener and Jacob**: They are credited with the discovery of mRNA.
- **Jacob and Monod**: They are known for their work on operons, which are regulatory sequences in DNA.
- **Watson and Crick**: They are famous for proposing the double helical structure of DNA.
- **Payne and Persaus**: They are not associated with the discovery of mRNA.

4. **Conclusion**: Based on the analysis, the correct answer to the question "mRNA was discovered by" is **Breener and Jacob**.

**Final Answer**: Breener and Jacob

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