Question

In E. coli, .......... operons are formed by grouping nearly .......... genes.

• A. $80$ operons and $260$ genes
• B. $75$ operons and $260$ genes
• C. $280$ operons and $80$ genes
• D. $280$ operons and $75$ genes

Answer 1

The correct option is B $75$ operons and $260$ genes

Operons are set of genes with a common regulatory element. It regulates the expression of genes during translation. In E. coli, 260 genes group together to form 75 operons.

Thus, the correct answer is option B.