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