VIRUSES lesson 4: Bacteriophages Quizellenj2022-07-18T21:51:40-04:00 Please sign up for the course before taking this quiz. 1. Polio and herpes are equally destructive to Golgi bodies.1 True False 2. Both polio and herpes are viruses that like to migrate into nerve cells.1 True False 3. Which of these is NOT true about poliovirus?1 It has a small genome. It leaves the cell by budding. It doesn't carry any protein tools in its capsid. It has an IRES region at the 5 prime end of its RNA. 4. 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. 5. Which one of these events in the life cycle of herpes occurs outside the nucleus?1 Assembly of the capsids Transcription of mRNAs Replication of the genome Manufacturing of glycoproteins 6. What does the poliovirus do in its replication complexes?1 Makes copies of its genome Makes capsid proteins Assembles the capsids Does its entire life cycle 7. Which of these cell receptors does poliovirus use?1 CD4 ACE2 sialic acid CD155 MHC1 heparan sulfate 8. Which virus chops and shreds cellular DNA inside the nucleus?1 both herpes neither polio 9. How long can a herpes virus stay in its lysogenic (dormant) stage?1 For almost a year. Until the host reaches adulthood. Until the host catches another virus. For the lifetime of the host. For several months. 10. 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. 11. From which cell part does herpes get its envelope?1 from the Golgi body from the nucleus from the ER from the outer (plasma) membrane 12. Chickenpox is not really a pox family virus.1 True False 13. Which of these is NOT a job done by one of herpes’ tegument proteins?1 Starting the production of immediate early mRNAs. Helping the capsid get out of the nucleus. Attaching to a receptor on the surface of a cell. Chopping and shredding cellular mRNAs 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
