Chapter 14, Problem 3CONQ

Summary Introduction

To review:

The effector molecule and regulatory protein that is involved in the regulation of a gene under positive control.

Introduction:

Bacterial chromosome such as E.coli (Escherichia Coli) contain a thousand different genes. The level of gene expression varies under different conditions. This expression of a gene is known as gene regulation. The unregulated genes are called constitutive genes. The most common way to regulate gene expression in bacteria is by influencing the rate of transcription. Transcription is the process via which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).