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