Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
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Chapter 17, Problem 8TYU
Summary Introduction

To determine:

The given mechanism of the success of viruses in the way they evolve, the way in which they escape the host defense mechanisms as an example of microcosm and the viral lineages that tend to predominate.

Introduction:

Microcosm is a term the meaning of which is that it is a miniature representation of something, especially a unit, group, or place that is regarded as a copy of a larger one. There are many factors on which the evolution of amicro-organism depends. They can be changes in the environment, administration of any drug(s) mutation and many more.

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The success of some viruses lies in their ability to evolve rapidly within the host. Such a virus evades the host's defenses by mutating and producing many altered progeny viruses before the body can mount an attack. Thus, the viruses present late in infection differ from those that initially infected the body. Discuss this as an example of evolution in a microcosm. Which viral lineages tend to predominate?
Think about the cells that viruses infect. Pick out the correct statements below.   A. The host cell has some particular thing - be it machinery, chemistry or whatever - that the virus MUST have in order to successfully reproduce.   B. Viruse generally don't care what cells they infect.   C. Viruses can only replicate in particular hosts and tissues.   D. The host range or tissue specficity means the specific type of cells the virus infects.   Example - rabies infects neural cells.
WRITE ABOUT A THEME: ORGANIZATION While virusesare considered by most scientists to be nonliving, they doshow some characteristics of life, including the correlationof structure and function. In a short essay (100–150 words),discuss how the structure of a virus correlates with its function.
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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY