Chapter 7, Problem 6CT

Summary Introduction

To answer:

To determine the effect on the bacterium’s ability to catabolize lactose in which the lac operon gene is mutated.

Introduction:

The lac operon is a segment of the gene that is required in the transportation and metabolism of lactose in E. coli and various enteric bacteria. It has a series of three genes in bacteria that synthesize the necessary enzymes to get energy from the lactose. It has three structural genes, namely a promoter, a regulator, and an operator.