Microbiology: Principles and Explorations 9th Edition

Published by Wiley
ISBN 10: 1-11874-316-4
ISBN 13: 978-1-11874-316-4

Chapter 10 - Viruses - Self Quiz - Page 310: 14



Work Step by Step

The following are the major differences in the replication of animal viruses and bacteriophages: 1. Once in the host cell, animal viruses undergo a process of “uncoating” whereby the viral genome is separated from its protein coat by proteolytic enzymes; the viral genome in a bacteriophage is ready to go once injected into the bacterial host cell; 2. Compared to bacteriophage replication, synthesis in animal virus replication can take much longer; 3. In the penetration stage, bacteriophages produce lysozyme to weaken the bacterial cell wall and inject their DNA through the tail core into the bacterial cell, whereas animal viruses either fuse their envelope with the host’s plasma membrane or enter by endocytosis; 4. The maturation stage in animal enveloped viruses is longer than that of bacteriophage replication
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