The 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.

the last one is right easy points!

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

Option (c);

EXPLANATION:

A genome means a complete set of DNA of the organism which includes all its genes. Genome sequencing means finding out the sequence of DNA nucleotides that forms the organism such as A's, C's, and G's. This sequence gives the genetic information of that particular segment of DNA.

Operon is a section of DNA containing the genes in sequence. They are transcribed into single mRNA that has sequence coding for all the adjacent genes. Thus, scientists started reading the sequence of the genome to understand the quantity and the group of operons.