Positive Stranded RNA Viruses Characteristics Quiz

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What surrounds the nucleic acid of a virus?

Mitochondria

Protein coat (correct)

Lipid bilayer

Cell membrane

Which components are involved in viral replication?

Lysosomes, Golgi apparatus, endoplasmic reticulum

Cytoskeleton, cytoplasm, nucleus

Chloroplasts, vacuoles, peroxisomes

Viral m RNA, viral t RNA, and viral ribosomes (correct)

What type of RNA viruses have positive strands?

Negative stranded RNA viruses

Double-stranded RNA viruses

Positive stranded RNA viruses (correct)

Neutral stranded RNA viruses

What is the main function of viral ribosomes in a viral infection?

Produce viral proteins during replication Signup and view all the answers

Which organelle is NOT typically involved in the replication of a virus?

Lysosomes Signup and view all the answers

Which type of virus is Rotavirus?

Double-stranded RNA Signup and view all the answers

How is Rotavirus primarily transmitted?

Faecal-oral route Signup and view all the answers

What is a key method for preventing Rotavirus infection?

Vaccination Signup and view all the answers

What is the incubation period for Rabies virus?

7 days to several years Signup and view all the answers

How is the infectivity of Rabies virus affected by lipid solvents?

Destroyed Signup and view all the answers

Why is purifying proteins directly from viral particles considered expensive?

Virus preparation in large quantities is challenging Signup and view all the answers

What is a primary concern associated with purifying proteins directly from viral particles?

Risk of virulent virus contamination Signup and view all the answers

Why is it challenging to prepare virus in large enough quantities for protein purification?

Virus propagation is time-consuming Signup and view all the answers

What makes purifying proteins directly from viral particles potentially dangerous?

Possibility of virus contamination Signup and view all the answers

In the context of protein purification, what could be an implication of contaminating virulent virus during the process?

Reduced protein quality Signup and view all the answers

Where does the assembly of herpes viruses virion occur?

Nucleus Signup and view all the answers

How can prevention of HSV-1 infection be achieved?

Avoiding physical contact Signup and view all the answers

Which human herpes virus is associated with disorders of the immune system?

Human herpes virus-6 Signup and view all the answers

What is the cause of mononucleosis, hepatitis, and can be transmitted through sexual contact?

Human herpes virus-5 Signup and view all the answers

How do herpes virus 1 vaccines significantly impact disease?

Reduce the incidence and severity of disease Signup and view all the answers

What is a common occurrence in infected cells according to the text?

Production of nucleic acid-free helical particles Signup and view all the answers

What is a distinctive feature of the empty helical particles produced in infected cells?

Lack of nucleic acid Signup and view all the answers

How do infected cells differ in terms of helical particle production compared to healthy cells?

Infected cells produce less helical particles Signup and view all the answers

What is a consequence of the excess production of empty helical particles in infected cells?

Accumulation of non-functional particles Signup and view all the answers

Which statement accurately describes the helical particles produced in infected cells?

Contain a high amount of nucleic acid Signup and view all the answers