Q1. Differentiate a virus from a bacterium, with regard to size range, structural features, host-dependence, and mode of reproduction.
Q2. Why are virion not considered living organisms?
Q3. List and briefly describe the key characteristics of a typical virus.
Q4. What are the three basic viral structures and what are they composed of?
Q5. Give an taxonomic example each of a viral family, genus, species, and strain.
Q6. List the criteria used in viral classification, with an example for each.
Q7. What are the stages of a viral growth curve and what happens at each?
Q8. List all the stages of the lytic and the lysogenic cycles of bacteriophage multiplication, and describe the key event in each stage.
Q9. Briefly describe three results of lysogeny. What is different between lysogney and latency?
Q10. List all the stages in the multiplication of animal viruses, and describe the key event in each stage.
Q11. Compare and contrast the events in bacteriophage and animal virus multiplication.
Q12. Differentiate the entry into a cell of enveloped and non-enveloped viruses. How do enveloped viruses exit?
Q13. Define oncogenic viruses and what is happening to the host cell, with three examples.
Q14. Differentiate latent and persistent viral infections, with two examples of each.
Q15. Define "prion", list its key characteristics, and give one example each of prion disease in humans.
Q16. Define "viroid".