Exam 14: Gene Regulation in Bacteria

For these questions, match the following to its appropriate letter. Use each letter only once. A) lacI gene product B) Operator C) Allolactose D) Lac operon E) Trp operon F) Tryptophan -Inducer

In a particular E. coli strain, a mutation in the thiMD operon results in improper formation of the stem loop secondary structure making it impossible to bind TPP. There are two enzymes encoded by the thiMD operon. How many of the enzymes encoded in the thiMD operon are translated?