Chapter 16
Viruses
![What are Viruses?](https://jovecdn2.ccindex.cn/files/media/science-education/science-education-thumbs/10821.jpg)
A virus is a microscopic infectious particle that consists of an RNA or DNA genome enclosed in a protein shell. It is not able to reproduce on its…
![Viral Structure](https://jovecdn2.ccindex.cn/files/media/science-education/science-education-thumbs/10822.jpg)
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains…
![Lysogenic Cycle of Bacteriophages](https://jovecdn2.ccindex.cn/files/media/science-education/science-education-thumbs/10824.jpg)
In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine…
![Retrovirus Life Cycles](https://jovecdn2.ccindex.cn/files/media/science-education/science-education-thumbs/10825.jpg)
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme…
![Influenza A Virus Studies in a Mouse Model of Infection](https://jovecdn2.ccindex.cn/files/thumbs/55898_t.png)
Influenza viruses cause over 500,000 deaths worldwide1 and are associated with an annual cost of 12 - 14 billion USD in the United States alone…
![Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm](https://jovecdn2.ccindex.cn/files/thumbs/55534_t.png)
Many novel viruses have been discovered in animal hosts using next-generation sequencing technologies. Previously, we reported a mutualistic virus,…