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Virus biology (MV1)

Total questions: 6

Worksheet time: 4mins

Name
Class
Date
1.

In the generalized steps, which step is defined as the physical separation of the viral nucleic acid from the capsid?

a)

Uncoating

b)

Attachment

c)

Penetration

d)

Assembly

2.

In viral genetics, reassortment is recombination that occurs in segmented genome virus only and produces new combinations in different individuals. What is reassortment called?

a)

Antigenic drift

b)

Antigenic shift

c)

Homologous recombination

d)

Serial passage

3.

Variation in viral properties is of great importance for human medicine. Viruses grow rapidly with more chance of mutations. Which feature of RNA viruses contributes to their higher mutation rates compared with DNA viruses?

a)

Extensive proofreading by RNA polymerase

b)

No proofreading in RNA polymerase

c)

Replication in the nucleus only

d)

Larger genome size than DNA viruses

4.

According to the generalized viral multiplication steps, which compartment is emphasized for translation in a (+)ssRNA virus?

a)

Nucleus

b)

Cytosol

c)

Mitochondrial matrix

d)

Nuclear pore complex

5.

What is your student ID?

4 lines
6.

What characteristic makes prions unique infectious agents?

a)

They are made of DNA.

b)

They are destroyed by boiling.

c)

They contain no genetic material.

d)

They replicate in the cytoplasm.