HDV Families and Genome Structure Quiz
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Questions and Answers

Which type of infection is associated with superinfection of HDV?

  • Acute
  • Chronic (correct)
  • Both acute and chronic
  • None of the above

What is the prevailing genotype of HDV in Europe?

  • Genotype 2
  • Genotype 3
  • Genotype 1 (correct)
  • Genotype 4

Which of the following is a possible mode of transmission of HDV?

  • Inhalation of infected air droplets
  • Sexual contact (correct)
  • Ingestion of contaminated food
  • Skin contact

Which cellular enzyme is responsible for HDV genomic RNA replication?

<p>RNA polymerase II (B)</p> Signup and view all the answers

What is the morphology of HDV?

<p>Enveloped, spherical, and pleiomorphic (C)</p> Signup and view all the answers

How does HDV enter the cells?

<p>Mediated by HBsAg protein (A)</p> Signup and view all the answers

Which type of disease can superinfection of HDV cause?

<p>Severe acute disease (D)</p> Signup and view all the answers

What is the prevailing genotype of HDV in Europe?

<p>Genotype 1 (B)</p> Signup and view all the answers

What are the possible modes of transmission of HDV?

<p>Injecting drug use (B)</p> Signup and view all the answers

What is the only protein encoded by the HDV genome?

<p>HDAg (A)</p> Signup and view all the answers

What is the morphology of HDV?

<p>Spherical and pleiomorphic (B)</p> Signup and view all the answers

What is the replication cycle of HDV?

<p>Genomic RNA replication is operated by viral RNA polymerase (B)</p> Signup and view all the answers

What is the most common genotype of HDV in Europe?

<p>Genotype 1 (C)</p> Signup and view all the answers

Which type of exposure can transmit HDV through sex contact?

<p>Permucosal exposure (E)</p> Signup and view all the answers

What is the characteristic histological feature of acute HDV infection in the liver?

<p>Presence of inflammatory cells in the parenchyma and portal areas (C)</p> Signup and view all the answers

Which protein is associated with the viral genome and is the only protein encoded by the HDV genome?

<p>HDAg protein (B)</p> Signup and view all the answers

What is the morphology of HDV?

<p>Spherical and slightly pleiomorphic (D)</p> Signup and view all the answers

What is the replication cycle of HDV?

<p>Genomic RNA replication in the nucleus operated by cellular RNA polymerase II followed by cuts and autocatalytic ligation of genome and antigenome to produce the mRNA encoding S and L forms of HDAg (A)</p> Signup and view all the answers

Which protein is associated with the HDV viral genome and is the only protein encoded by the HDV genome?

<p>HDAg protein (D)</p> Signup and view all the answers

What is the morphology of HDV?

<p>Spherical and slightly pleiomorphic (B)</p> Signup and view all the answers

What is the replication cycle of HDV?

<p>Genomic RNA replication in the nucleus operated by cellular RNA polymerase II (C)</p> Signup and view all the answers

Which type of exposure can transmit HDV through sex contact?

<p>Permucosal exposure (D)</p> Signup and view all the answers

What is the prevailing genotype of HDV in Europe?

<p>Genotype 1 (B)</p> Signup and view all the answers

What is the type of infection associated with superinfection of HDV?

<p>Chronic infection (A)</p> Signup and view all the answers

Which type of HDV infection is associated with chronic disease?

<p>Superinfection (D)</p> Signup and view all the answers

What is the prevailing genotype of HDV in Europe?

<p>Genotype 1 (B)</p> Signup and view all the answers

Which type of exposure can transmit HDV through injecting drug use?

<p>Percutaneous exposure (A)</p> Signup and view all the answers

Which protein is associated with the HDV viral genome and is the only protein encoded by the HDV genome?

<p>HDAg protein (B)</p> Signup and view all the answers

What is the possible mode of entry of HDV into the cells?

<p>Mediated by HBsAg (C)</p> Signup and view all the answers

What is the morphology of HDV?

<p>Spherical, slightly pleiomorphic envelope (D)</p> Signup and view all the answers

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