Question

Jacob and Monad studied lactose metabolism in E.Coli and proposed operon concept. Operon concept applicable for

• A. All prokaryotes
• B. All prokaryotes and some eukaryotes
• C. All prokaryotes and all eukaryotes
• D. All prokaryotes and some protozoanes

Answer 1

Answer: (A)

All prokaryotes

Answer 2

The correct option is (A) : All prokaryotes

The Lac operon idea was developed by Jacob and Monad after their investigation of lactose metabolism in E. coli. The idea clarifies how lactose is transported and metabolised by Escherichia coli and many other intestinal bacteria. Every prokaryote can benefit from understanding the Lac-operon idea.