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