VIRUSES lesson 4: Bacteriophages Quizellenj2022-07-18T21:51:40-04:00 Please sign up for the course before taking this quiz. 1. How long can a herpes virus stay in its lysogenic (dormant) stage?1 For several months. Until the host reaches adulthood. Until the host catches another virus. For almost a year. For the lifetime of the host. 2. Which one of these events in the life cycle of herpes occurs outside the nucleus?1 Assembly of the capsids Manufacturing of glycoproteins Transcription of mRNAs Replication of the genome 3. Polio and herpes are equally destructive to Golgi bodies.1 True False 4. Why does herpes stop the ER from making MHC1 flags?1 So the cell will lose its ability to identify itself. 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. 5. Which virus chops and shreds cellular DNA inside the nucleus?1 herpes polio both neither 6. Both polio and herpes are viruses that like to migrate into nerve cells.1 True False 7. Proteins “scissors” (proteases) can cut any protein.1 True False 8. From which cell part does herpes get its envelope?1 from the nucleus from the outer (plasma) membrane from the ER from the Golgi body 9. Chickenpox is not really a pox family virus.1 True False 10. Which of these cell receptors does poliovirus use?1 MHC1 ACE2 CD4 CD155 heparan sulfate sialic acid 11. 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. 12. What does the poliovirus do in its replication complexes?1 Makes copies of its genome Makes capsid proteins Does its entire life cycle Assembles the capsids 13. There are many herpes family viruses that don’t infect humans.1 True False 14. 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. 15. 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. Helping the capsid get out of the nucleus. Starting the production of immediate early mRNAs. Chopping and shredding cellular mRNAs VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
