How much do you know about the diverse family of Reoviridae viruses?

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Questions and Answers

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?

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?

Double-stranded RNA genomes

Lack of lipid envelopes

Replication in the nucleus (correct)

Multi-layered capsids

How does the virus exit the host cell?

By cell lysis Signup and view all the answers

Which of the following is a potential symptom of a reovirus infection in humans?

Severe diarrhea Signup and view all the answers

How do interferons protect neighboring cells from potential viral infection?

By inducing production of interferon-stimulated genes (ISGs Signup and view all the answers

Where does replication occur in Reoviridae viruses?

In the cytoplasm Signup and view all the answers

How many segments are typically found in the genomes of viruses in the family Reoviridae?

9-12 Signup and view all the answers

Which of the following is true about the effect of interferons on tumor growth?

Interferons inhibit tumor growth in animals, but not widely documented in humans Signup and view all the answers

How do interferons enhance presentation of viral and abnormal peptides to immune cells?

By increasing MHC I and II expression Signup and view all the answers

Which of the following is true about the host range of viruses in the family Reoviridae?

They infect a wide range of hosts, including invertebrates and fungi Signup and view all the answers

How many segments is the genome of rotavirus divided into?

11 Signup and view all the answers

What is the main trigger for the production of interferons?

Microbes and their products Signup and view all the answers

How does translation take place in Reoviridae viruses?

By ribosomal skipping Signup and view all the answers

How are some viruses in the family Reoviridae transmitted between plants?

Via insect vectors Signup and view all the answers

Which of the following is a potential symptom of a rotavirus infection in children?

Severe diarrhea Signup and view all the answers

Which of the following is important for inducing interferons in response to double-stranded RNA viruses?

TLR3 Signup and view all the answers

How many species are currently in the family Reoviridae?

97 Signup and view all the answers

How can RNA interference technology tools affect interferon pathways?

They can silence or stimulate interferon pathways Signup and view all the answers

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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Description

Test your knowledge about the fascinating family of viruses, Reoviridae! From their diverse host range to their unique lack of a lipid envelope, this quiz covers all the essential facts you need to know about these double-stranded RNA viruses. Learn about the different genera and subfamilies, their impact on human health, and their transmission between plants by insect vectors. With 10 questions covering everything from viral genomes to cell entry, this quiz will challenge your understanding of Reoviridae.