VIRUSES lesson 4: Bacteriophages Quizellenj2022-07-18T21:51:40-04:00 Please sign up for the course before taking this quiz. 1. What does the poliovirus do in its replication complexes?1 Makes capsid proteins Makes copies of its genome Does its entire life cycle Assembles the capsids 2. Which of these is NOT true about poliovirus?1 It has an IRES region at the 5 prime end of its RNA. It has a small genome. It leaves the cell by budding. It doesn't carry any protein tools in its capsid. 3. Chickenpox is not really a pox family virus.1 True False 4. Which of these cell receptors does poliovirus use?1 MHC1 CD155 sialic acid heparan sulfate CD4 ACE2 5. Which virus chops and shreds cellular DNA inside the nucleus?1 neither both polio herpes 6. Polio and herpes are equally destructive to Golgi bodies.1 True False 7. Both polio and herpes are viruses that like to migrate into nerve cells.1 True False 8. There are many herpes family viruses that don’t infect humans.1 True False 9. 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 10. Which one of these events in the life cycle of herpes occurs outside the nucleus?1 Transcription of mRNAs Replication of the genome Manufacturing of glycoproteins Assembly of the capsids 11. 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. 12. 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 the lifetime of the host. For several months. For almost a year. 13. Which of these is NOT true of herpes simplex?1 It has several different kinds of glycoprotein spikes. 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. 14. Proteins “scissors” (proteases) can cut any protein.1 True False 15. 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 VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
