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