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Virology Quiz: Structural Investigations and Detection Methods

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Virology Quiz: Structural Investigations and Detection Methods

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Questions and Answers

What are Negri bodies composed of?

Poxvirus DNA and protein

Rabies virus proteins and RNA (correct)

Adenovirus DNA and protein

Cytomegalovirus DNA and protein

What is the appearance of Guarnieri bodies of Poxvirus?

Dense, central intranuclear inclusions

Sharply delineated, oval eosinophilic inclusions

Characteristic Owl’s eye intranuclear bodies

Pink blobs in the cytoplasm of affected epithelial cells (correct)

What is the characteristic feature of Nuclear bodies of adenovirus?

Characteristic Owl’s eye intranuclear bodies

Dense, central intranuclear inclusions (correct)

Oval eosinophilic inclusions

Pink blobs in the cytoplasm of affected epithelial cells

What is the characteristic feature of Nuclear and cytoplasmic bodies of cytomegalovirus?

Characteristic Owl’s eye intranuclear bodies Signup and view all the answers

In which type of cells are Negri bodies typically found?

Neurons Signup and view all the answers

What is the purpose of fluorescence microscopy in detecting viral infections?

To detect a fluorescent dye linked to antibody molecules Signup and view all the answers

What is the term for the formation of giant cells with multiple nuclei due to cell fusion?

Syncytium formation Signup and view all the answers

Which of the following is an example of cytopathic effect caused by poliovirus?

Cell death Signup and view all the answers

What is the term for the process by which viruses alter the growth characteristics of infected cells?

Cell transformation Signup and view all the answers

What is the main purpose of electron microscopy in virology?

To study the morphology of virions Signup and view all the answers

What is the term for the nuclear or cytoplasmic aggregates of virus particles due to viral replication?

Inclusion bodies Signup and view all the answers

What is a characteristic of viruses?

They are obligate intracellular parasites. Signup and view all the answers

What is the purpose of phage typing of bacteria?

To determine bacterial strains. Signup and view all the answers

What is the purpose of Viral Transport Medium (VTM)?

To preserve viral infectivity and prevent specimen drying. Signup and view all the answers

What is the method of virus cultivation using cells that can divide indefinitely?

Tissue culture using continuous cell line (Hela cell). Signup and view all the answers

What is the name of the method used to identify and quantify viruses?

Plaque assay. Signup and view all the answers

What is the term for the viral particles that infect bacteria?

Bacteriophage. Signup and view all the answers