Viruses
1. Are viruses cellular beings?
2. What is the basic structure
of a virus?
3. Are there non-parasitic
viruses?
4. Why is it a strong
evolutionary hypothesis that
although viruses are the
structurally simplest beings
they were not the first living
beings?
5. What is the genetic material
of a virus? How does that
material act in viral
reproduction?
6. What is the typical
reproduction cycle of a DNA
virus?
7. What are retroviruses? How
do they reproduce and what is
the role of the enzyme reverse
transcriptase?
8. What is the basic structure
of the HIV virus? What is the
function of the glycoproteins
of its envelope?
9. What are bacteriophages?
10. What is meant when it is
said that a virus is in an
inactive state?
11. What are the main human
diseases caused by virus?
12. SARS is a disease that
appeared in 2003 with
epidemic features in the
province of Guangdong, in
east China. What type of agent
causes SARS?
13. What is crystallization of a
virus? What is the importance
of this process?