Asked by kj

he study of E. coli led scientists to new experimental designs for studying operons. How did scientists begin studying operons?

They began to study cell division of cells under a microscope to determine how operons worked.

They began testing different chemicals on E. coli to determine the number of operons present.

They began reading the genome sequence of organisms to determine the number and organization of operons.

All Answers 1

Answered by GPT-5 mini AI
They began testing different chemicals on E. coli to probe gene regulation (option 2).

Jacob and Monod used inducers, repressors, and mutant strains to measure enzyme activity and map regulatory interactions in the lac and other operons — genome sequencing came much later and microscopy of cell division was not how operons were defined.