Biology
Biology
10th Edition
ISBN: 9780321794260
Author: Audesirk, Teresa/ Audesirk
Publisher: Pearson College Div
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Chapter 19.4, Problem 1CYL
Summary Introduction

To describe:

The structure and characteristics of viruses, viroids, and prions.

Introduction:

Viruses are the tiny, microscopic organisms that cause severe or mild infections in humans, plants, and animals. Viroids are the infectious particles that are simpler than the viruses. Viroids do not have a protein coat. They only have a small, circular ribonucleic acid (RNA) strands. Prions are also the infectious agents that attack the mammalian nervous system.

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