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