Chapter 15, Problem 9MC

Summary Introduction

Introduction:

The viruses are non cellular organisms that are characterized by having an inert crystalline structure outside the living cell .They are obligate intracellular parasites. Virus can infect all types of life forms, from animals and plants to microorganisms. All vises consist of a nucleic acid genome surrounded by a protein coat. In addition many viruses contain a lipid envelop. The entire intact virus is called the virion.