Chapter 14, Problem 1QSDC

Summary Introduction

To review:

The advantages and disadvantage of genetic regulation at different points.

Introduction:

Gene is the fundamental unit of hereditary and is passed on from one generation to the next. It is composed of DNA (deoxyribonucleic acid). Some genes are expressed in all the cells and all the time. These types of genes are known as housekeeping genes because they are important for the proper functioning of the cells. Some other types of genes are expressed only when the products coded by them are required by the cell. These types of genes are regulated by cellular machinery and are not expressed until they are needed by the cells.