Chapter 13: Viruses, Viroids, and Prions
In acute viral infections, although the infected host cells may die, the host cell may survive because
The host's immune system may gradually eliminate the virus
By what method can an enveloped virus gain entry into animal cells
- Fusion of the viral envelope and the cell membrane - Endocytosis of the virus by the host cell
Infection of bacteria by ____ phages always ends with the lysis of the host cell.
Lytic
List the steps of an animal virus infection cycle in the correct order
1. Attachment 2. Penetration and uncoating 3. Synthesis of viral proteins and replication of the genome 4. Assembly 5. Release
Symptoms of acute viral diseases result from
Host immune response Host tissue damage
What directs the incorporation of phage DNA into a bacterial chromosome?
Integrase
The rupture or bursting of a cell
Lysis