Question

Lac Operon concept is introduced by these biochemists and geneticists:

• A. Mendel & Butler
• B. Monad & Jacob
• C. Jacob & Monad
• D. Jacob & Sutton

Hint:

Remember: Jacob and Monod introduced the Lac Operon model of gene regulation in prokaryotes.

Answer 1

The Correct Option is B

The Lac Operon model explains gene regulation in prokaryotes and was introduced by François Jacob and Jacques Monod in 1961.
They demonstrated how genes could be turned on/off based on environmental conditions, particularly the presence or absence of lactose in \textit{E. coli}.
Their work established foundational concepts in molecular biology about:
- Operons
- Regulatory genes
- Repressors
- Inducible gene systems

Answer 2

Lac Operon concept is introduced by these biochemists and geneticists:

The Lac operon is a well-studied example of gene regulation in prokaryotes, particularly in *Escherichia coli*. It explains how bacteria regulate the metabolism of lactose depending on its availability.

The concept of the Lac operon was introduced by François Jacob and Jacques Monod in the 1960s. Their pioneering work on the operon model revealed the mechanisms of gene regulation through repressors and operators, which was a significant advancement in molecular biology.

Their research provided insight into how genes can be turned on or off in response to environmental changes, and they were awarded the Nobel Prize for this work.

Correct Answer: Monad & Jacob