VIRUSES lesson 4: Bacteriophages Quizellenj2022-07-18T21:51:40-04:00 Please sign up for the course before taking this quiz. 1. Why does herpes stop the ER from making MHC1 flags?1 So the infected cell can't alert immune system cells about the viral activity going on inside. So the cell will lose its ability to identify itself. So more ATP energy will be available for making viral proteins. 2. Polio and herpes are equally destructive to Golgi bodies.1 True False 3. There are many herpes family viruses that don’t infect humans.1 True False 4. How long can a herpes virus stay in its lysogenic (dormant) stage?1 For almost a year. Until the host catches another virus. For the lifetime of the host. Until the host reaches adulthood. For several months. 5. Which of these is NOT a job done by one of herpes’ tegument proteins?1 Chopping and shredding cellular mRNAs Helping the capsid get out of the nucleus. Starting the production of immediate early mRNAs. Attaching to a receptor on the surface of a cell. 6. What does the poliovirus do in its replication complexes?1 Assembles the capsids Does its entire life cycle Makes copies of its genome Makes capsid proteins 7. Chickenpox is not really a pox family virus.1 True False 8. Which of these is NOT true of herpes simplex?1 It has several different kinds of glycoprotein spikes. Most people are infected with at least one type of herpes virus. It enters the body through intestinal cells. It assembles its capsids in the nucleus. 9. Which of these cell receptors does poliovirus use?1 sialic acid MHC1 heparan sulfate CD4 CD155 ACE2 10. Which of these is NOT true about poliovirus?1 It leaves the cell by budding. It has a small genome. It doesn't carry any protein tools in its capsid. It has an IRES region at the 5 prime end of its RNA. 11. Which one of these events in the life cycle of herpes occurs outside the nucleus?1 Replication of the genome Assembly of the capsids Manufacturing of glycoproteins Transcription of mRNAs 12. Proteins “scissors” (proteases) can cut any protein.1 True False 13. Both polio and herpes are viruses that like to migrate into nerve cells.1 True False 14. Which virus chops and shreds cellular DNA inside the nucleus?1 polio herpes both neither 15. From which cell part does herpes get its envelope?1 from the ER from the outer (plasma) membrane from the nucleus from the Golgi body VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
