Question

The gene for human growth factor is inserted into the e. Coli lactose operon so that it replaces the structural genes with the gene for human growth factor. What substance must be added to the bacterial culture so that it produces human growth factor?.

Answer 1

Answer: IPTG

Step-by-step explanation:

IPTG or Isopropyl β-D-1-thiogalactopyranoside is a chemical reagent mimicking allolactose, which removes a repressor from the lac operon to induce gene expression. IPTG is the most common molecule used to induce gene expression when using the lac operon.