Operon model' for gene regulation in bacteria was proposed by

Options

A. Francois Jacob
B. Jacques monod
C. Francois Jacob and Jacques Monod
D. Bealde & Tatum

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Operon Model**: The operon model is a concept in genetics that explains how genes are regulated in bacteria. It consists of a cluster of genes that are transcribed together under the control of a single promoter and regulated by an operator.

2. **Identifying Key Scientists**: The operon model was notably elucidated through the study of the lac operon, which is involved in lactose metabolism in E. coli. The key scientists who proposed the operon model are François Jacob and Jacques Monod.

3. **Significance of the Lac Operon**: The lac operon serves as a classic example of gene regulation in bacteria. It consists of structural genes that encode proteins necessary for the utilization of lactose, and it is regulated by the presence or absence of lactose in the environment.

4. **Conclusion**: Based on the contributions of François Jacob and Jacques Monod in the development of the operon model, the correct answer to the question is that the operon model for gene regulation in bacteria was proposed by these two scientists.

**Final Answer**: The operon model for gene regulation in bacteria was proposed by François Jacob and Jacques Monod.

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