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