Study questions (All topics)-3

Study questions (All topics)

Fill in the blanks

1. The component(s) of a virus that is/are extended from the envelope for attachment is/are the____________________
2. The envelope of a virus is derived from the host’s ____________________________
3. In naming viruses, the family name ends with __________ and genus name ends with ___________
4. Another name for a nonenveloped virus is______________________________
5. A virus that infects a bacterium is called a/an __________.
6. A/an __________ virus possesses characteristics of both a polyhedral and helical virus.
7. A virus containing only nucleic acid and a capsid is called a/an __________ virus or __________ virus.
8. The __________ on the bacteriophage allow for binding to the bacterial cell.

Think about It

1. Discuss the geometric differences among helical, polyhedral, and complex viruses.
2. What was the meaning of the word “virus” in the 1880s and why was it used to describe the cause of tobacco mosaic disease?
3. In terms of evolution, which do you think arises first? The virus or the host? Explain your answer.
4. Do you think it is possible to create a virus in the lab? Imagine that you are a mad scientist. Describe how you would go about creating a new virus?
5. Name each labeled part of the illustrated bacteriophage.