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 about poliovirus?1 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. It has a small genome. 2. From which cell part does herpes get its envelope?1 from the outer (plasma) membrane from the Golgi body from the ER from the nucleus 3. Proteins “scissors” (proteases) can cut any protein.1 True False 4. Polio and herpes are equally destructive to Golgi bodies.1 True False 5. Both polio and herpes are viruses that like to migrate into nerve cells.1 True False 6. Which of these cell receptors does poliovirus use?1 CD4 CD155 heparan sulfate sialic acid MHC1 ACE2 7. 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 8. What does the poliovirus do in its replication complexes?1 Does its entire life cycle Assembles the capsids Makes capsid proteins Makes copies of its genome 9. There are many herpes family viruses that don’t infect humans.1 True False 10. 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. 11. Which virus chops and shreds cellular DNA inside the nucleus?1 polio neither both herpes 12. How long can a herpes virus stay in its lysogenic (dormant) stage?1 For several months. Until the host catches another virus. For the lifetime of the host. For almost a year. Until the host reaches adulthood. 13. Chickenpox is not really a pox family virus.1 True False 14. 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. It enters the body through intestinal cells. Most people are infected with at least one type of herpes virus. 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. Chopping and shredding cellular mRNAs Starting the production of immediate early mRNAs. Helping the capsid get out of the nucleus. VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
