Quiz 13

Question 1

Viruses that utilize reverse transcriptase belong to the virus families

Answer 1

Hepadnaviridae and Retroviridae

Question 2

A clear area against a confluent “lawn” of bacteria is called a

Answer 2

plaque

Question 3

Oncogenic viruses

Answer 3

cause tumors to develop

Question 4

An example of a latent viral infection is

Answer 4

cold sores

Question 5

Which of the following statements about viral spikes is FALSE?

Answer 5

They are found only on nonenveloped viruses

Question 6

Which of the following would be the first step in biosynthesis of a virus with a - (minus) strand of RNA?

Answer 6

synthesis of double-stranded RNA from an RNA template

Question 7

A virus’s ability to infect an animal cell depends primarily upon the

Answer 7

presence of receptor sites on the cell membrane

Question 8

Which one of the following steps does NOT occur during multiplication of a picornavirus?

Answer 8

synthesis of DNA

Question 9

A viroid is a(n)

Answer 9

infectious piece of RNA without a capsid