Course

Microbiology

Study Pack

Set 3 Virus Classification The World Of Viruses

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Question 1

(Multiple Choice)

Free
Which of the following is a type of nucleic acid NOT found as the genome of a virus that can infect vertebrates?

A) ssDNA
B) dsDNA
C) ssRNA
D) dsRNA
E) All of the above are found.

Answer

Question 2

(Multiple Choice)

Free
According to the RNA World hypothesis, which of the following subcellular entities may have evolved first?

A) Retroviruses
B) RNA Viruses
C) Viroids
D) DNA Viruses
E) Bacteriophages

Answer

Question 3

(Multiple Choice)

Free
What is approximately the largest size of a double-stranded DNA genome of a virus that infect vertebrates?

A) 25 kbp.
B) 50 kbp
C) 100 kbp
D) 300 kbp
E) 500 kbp

Answer