Viral Genomes: DNA vs. RNA

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What is the defining characteristic used to classify a virus as a DNA virus or an RNA virus?

Type of nucleic acid in the virus genome

Which of the following is NOT a type of virus genome based on the information provided?

Triple-stranded DNA

What is the size range of viruses as mentioned in the text?

$10$ nm to $900$ nm

Which characteristic makes viruses dependent on a host to live?

<p>Inability to reproduce outside of a host cell</p> Signup and view all the answers

What is the main structural component of a virus particle?

<p>Protein coat (capsid)</p> Signup and view all the answers

Which type of virus is known to have an envelope surrounding its protein coat?

<p>Enveloped virus</p> Signup and view all the answers

Which of the following statements about viruses is TRUE?

<p>The genetic material of all viruses is made up of RNA</p> Signup and view all the answers

Which component of the viral envelope membrane is of viral origin?

<p>Glycoproteins</p> Signup and view all the answers

Viruses lack which of the following metabolic components?

<p>Mitochondria</p> Signup and view all the answers

What is the structure that the arrow is pointing at?

<p>Capsid</p> Signup and view all the answers

In viral replication, where does the viral genome go after binding to a host cell?

<p>Nucleus</p> Signup and view all the answers

Which type of virus contains a single molecule DNA as its genome?

<p>Adenoviruses</p> Signup and view all the answers

Which virus is an example of a double-stranded RNA genome?

<p>Influenza</p> Signup and view all the answers

What is the main function of capsids in viruses?

<p>Enclose the viral genome</p> Signup and view all the answers

Which type of viruses have an enveloped structure derived partly from host cell membranes?

<p>Influenza</p> Signup and view all the answers

Which enzyme does HIV contain that converts RNA back to DNA?

<p>Reverse transcriptase</p> Signup and view all the answers

Which virus is an example of a single-stranded RNA genome?

<p>SARS virus</p> Signup and view all the answers

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