Course

Microbiology

Study Pack

Set 9 Viruses Of Archaea

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Question 1

(Multiple Choice)

Free
The filaments attached to one end of the Sulfolobus spindle-shaped virus 1 are thought to be involved in which of the following processes?

A) Degradation of the host cell wall
B) Attachment to the surface of host cells
C) Injection of the genome into the host cell
D) Movement of the virus particle through the environment
E) Maintaining the structure of the virion

Answer

Question 2

(Multiple Choice)

Free
Viruses that infect archaeal cells have been observed to have all of the following virion shapes EXCEPT:

A) Bottle shaped with a wide and a narrow end
B) Spherical
C) Brick shaped
D) Filamentous
E) Lemon-shaped

Answer

Question 3

(Multiple Choice)

Free
Which of the following is a description of an IS element?

A) A short transposable DNA sequence
B) A region of DNA where transcription begins
C) A telomeric-like sequence at the ends of the DNA
D) A region of the host chromosome where the viral DNA integrates
E) A region of DNA that acts as an origin or replication

Answer