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