Influenza Virus Genomic Sequences Quiz
12 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of PB1-F2 in some influenza viruses?

  • Aids in viral replication
  • Promotes host cell survival
  • Localizes to mitochondria and enhances apoptosis (correct)
  • Facilitates viral entry into the host cell

Which proteins are encoded by segment 7 of the influenza virus?

  • RNA polymerase subunits PA, PB1, PB2
  • Matrix M1 and envelope protein M2 (correct)
  • Non-structural proteins NS1 and NS2
  • Hemagglutinin and Neuraminidase

How is fusion of viral envelope with the endosomal membrane facilitated?

  • Viral envelope naturally fuses with endosome
  • Direct fusion upon contact
  • Activation by cleavage by cellular proteases (correct)
  • Endosomal pH change triggers fusion

What is the role of HA1 and HA2 subunits of Hemagglutinin (HA) in influenza virus?

<p>HA1 is the surface subunit, binds to sialic acid; HA2 contains the fusion peptide (A)</p> Signup and view all the answers

Which of the following proteins are encoded by segments 1-6 of the influenza virus genome?

<p>RNA polymerase subunits PA, PB1, and PB2 (B)</p> Signup and view all the answers

What is the role of PB1-F2 in some influenza viruses?

<p>Enhancing apoptosis by localizing to mitochondria (C)</p> Signup and view all the answers

How is fusion of viral envelope with the endosomal membrane facilitated in influenza virus?

<p>Activation by cleavage by cellular proteases (C)</p> Signup and view all the answers

What is the function of the N-terminal region of Hemagglutinin (HA) in influenza virus?

<p>It is exposed to the outside of the virion (D)</p> Signup and view all the answers

Which proteins are encoded by segment 8 of the influenza virus?

<p>Non-structural proteins NS1 and NS2 (C)</p> Signup and view all the answers

What is the role of PB1-F2 in some influenza viruses?

<p>Localizes to mitochondria and enhances apoptosis (D)</p> Signup and view all the answers

How is fusion of viral envelope with the endosomal membrane facilitated in influenza virus?

<p>Activation by cleavage by cellular proteases (C)</p> Signup and view all the answers

What is the function of the N-terminal region of Hemagglutinin (HA) in influenza virus?

<p>Exposed to the outside of the virion (B)</p> Signup and view all the answers

More Like This

Exploring Structural Genomics
5 questions
Functional Genomics and Proteomics Quiz
5 questions
Genomics: Evolution and Nucleotide Sequences
40 questions
Use Quizgecko on...
Browser
Browser