Chapter 6 An Introduction to Viruses PDF
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This document is a lecture on viruses, covering their introduction, history, classification and general size. The document details the biological spectrum, structure and properties of viruses.
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Chapter 6 An Introduction to Viruses Copyright © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Search for the Elusive Virus Louis Pasteur postulated that rabies was caused by a virus (1884)...
Chapter 6 An Introduction to Viruses Copyright © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Search for the Elusive Virus Louis Pasteur postulated that rabies was caused by a virus (1884) Ivanovski and Beijerinck showed a disease in tobacco was caused by a virus (1890s) 1950s virology was a multifaceted discipline – Viruses: noncellular particles with a definite size, shape, and chemical composition 2 Copyright © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Position of Viruses in the Biological Spectrum There is no universal agreement on how and when viruses originated Viruses are considered the most abundant microbes on earth Viruses played a role in the evolution of Bacteria, Archaea, and Eukarya Viruses are obligate intracellular parasites 3 Copyright © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. General Size of Viruses Size range – most
