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