Which of the following infectious particles do NOT have protein in their structure?
A) bacteriophages
B) prions
C) animal viruses
D) viroids
E) both prions and viroids
Answer: D
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Microbiology Chapter 13
- The reticuloendothelial system
- _____ is a mechanism of release for enveloped viruses.
- Virus infection results in cancer in the process of
- Virus replication results in the death of the cell in a(n) __________ infection.
- During __________, viruses remain dormant in a cell.
- Viruses are shed slowly and steadily during
- Proteins are present in
- Cytoplasm is a characteristic of
- Double-stranded RNA genomes can be found
- Double-stranded DNA genomes are found
- The infectious particles of fungi have RNA genomes and lack a capsid. They are therefore similar to
- How are prions different from all other known infectious agents?
- Viroids infect
- Diploid cell cultures and continuous cell cultures differ in which of the following ways?
- Plaque assays are used for
- Tumors invade other organs and tissues in a process called
- One mechanism by which viruses may cause cancer is to interrupt the genetic regulatory sequences of repressor proteins. Which of the following types of viruses is most likely to be involved in causing cancer by this mechanism?
- Which of the following individuals discovered prions?
- How is the HIV provirus different from a lambda phage prophage?
- The majority of cases of infant diarrhea are caused by what kind of virus?
- Which of the following membranes can give rise to a viral envelope?
- In contrast to most dsDNA animal viruses, the poxviruses replicate solely in the cytoplasm of the host cell. This fact implies that the viral genome may encode
- Which of the following types of animal virus requires RNA-dependent RNA transcriptase to be replicated?
- The genome of which of the following types of animal virus can act directly as mRNA?
- Reverse transcriptase is associated with which of the following?
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