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Questions and Answers
Which process allows two or more virus genomes to interact and form a viable virus genome?
Which process allows two or more virus genomes to interact and form a viable virus genome?
- Multiplicity reactivation (correct)
- Capsid digestion
- Suppression of termination
- Ribosomal skipping
What is the main function of interferons?
What is the main function of interferons?
- To inhibit immune system functions
- To promote tumor growth in animals
- To modulate immune system functions and combat viruses (correct)
- To increase angiogenesis and proliferation of endothelial cells
Which of the following is NOT a characteristic of viruses in the family Reoviridae?
Which of the following is NOT a characteristic of viruses in the family Reoviridae?
- Double-stranded RNA genomes
- Lack of lipid envelopes
- Replication in the nucleus (correct)
- Multi-layered capsids
How does the virus exit the host cell?
How does the virus exit the host cell?
Which of the following is a potential symptom of a reovirus infection in humans?
Which of the following is a potential symptom of a reovirus infection in humans?
How do interferons protect neighboring cells from potential viral infection?
How do interferons protect neighboring cells from potential viral infection?
Where does replication occur in Reoviridae viruses?
Where does replication occur in Reoviridae viruses?
How many segments are typically found in the genomes of viruses in the family Reoviridae?
How many segments are typically found in the genomes of viruses in the family Reoviridae?
Which of the following is true about the effect of interferons on tumor growth?
Which of the following is true about the effect of interferons on tumor growth?
How do interferons enhance presentation of viral and abnormal peptides to immune cells?
How do interferons enhance presentation of viral and abnormal peptides to immune cells?
Which of the following is true about the host range of viruses in the family Reoviridae?
Which of the following is true about the host range of viruses in the family Reoviridae?
How many segments is the genome of rotavirus divided into?
How many segments is the genome of rotavirus divided into?
What is the main trigger for the production of interferons?
What is the main trigger for the production of interferons?
How does translation take place in Reoviridae viruses?
How does translation take place in Reoviridae viruses?
How are some viruses in the family Reoviridae transmitted between plants?
How are some viruses in the family Reoviridae transmitted between plants?
Which of the following is a potential symptom of a rotavirus infection in children?
Which of the following is a potential symptom of a rotavirus infection in children?
Which of the following is important for inducing interferons in response to double-stranded RNA viruses?
Which of the following is important for inducing interferons in response to double-stranded RNA viruses?
How many species are currently in the family Reoviridae?
How many species are currently in the family Reoviridae?
How can RNA interference technology tools affect interferon pathways?
How can RNA interference technology tools affect interferon pathways?
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Study Notes
- Sedoreoviridae is a family of double-stranded RNA viruses.
- They have a wide host range, including vertebrates, invertebrates, plants, protists, and fungi.
- They lack lipid envelopes and package their genome within multi-layered capsids.
- There are currently 97 species in this family, divided among 15 genera in two subfamilies.
- Reoviruses can affect the gastrointestinal system and respiratory tract in humans.
- Rotaviruses can cause severe diarrhea and intestinal distress in children.
- Viruses in this family have been observed not associated with any known disease.
- Some viruses of this family infect plants and are transmitted between plants by insect vectors.
- The genomes of viruses in family Reoviridae contain 9–12 segments.
- The virus can enter the host cell via a receptor on the cell surface and replicate exclusively in the cytoplasm.
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