A cloning vector has tetracycline and ampicillin resistant gene. A foreign gene was inserted in the ampicillin resistant gene. The recombinant would survive in a medium containing:

A cloning vector has tetracycline and ampicillin resistant gene. A foreign gene was inserted in the ampicillin resistant gene. The recombinant would survive in a medium containing tetracycline but not ampicillin. This is because of insertional inactivation of the ampicillin resistant gene.