VIRUSES lesson 4: Bacteriophages Quizellenjmchenry2022-07-18T21:51:40-04:00 Please sign up for the course before taking this quiz. 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 Proteins “scissors” (proteases) can cut any protein.1 True False Both polio and herpes are viruses that like to migrate into nerve cells.1 True False There are many herpes family viruses that don’t infect humans.1 True False Which virus chops and shreds cellular DNA inside the nucleus?1 herpes neither both polio Which of these is NOT true of herpes simplex?1 It enters the body through intestinal cells. It has several different kinds of glycoprotein spikes. It assembles its capsids in the nucleus. Most people are infected with at least one type of herpes virus. Polio and herpes are equally destructive to Golgi bodies.1 True False Which of these is NOT true about poliovirus?1 It doesn't carry any protein tools in its capsid. It has a small genome. It has an IRES region at the 5 prime end of its RNA. It leaves the cell by budding. Which of these cell receptors does poliovirus use?1 sialic acid CD155 ACE2 CD4 MHC1 heparan sulfate What does the poliovirus do in its replication complexes?1 Makes copies of its genome Does its entire life cycle Makes capsid proteins Assembles the capsids Chickenpox is not really a pox family virus.1 True False How long can a herpes virus stay in its lysogenic (dormant) stage?1 Until the host reaches adulthood. Until the host catches another virus. For several months. For almost a year. For the lifetime of the host. 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 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. 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. VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
