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Virology and Viral Characteristics Quiz

#1

Which of the following is a characteristic feature of viruses?

Independent metabolism
Explanation

Viruses lack independent metabolism and rely on host cellular machinery for replication.

#2

What is the role of the glycoprotein spikes on the surface of enveloped viruses?

Facilitate viral attachment
Explanation

Glycoprotein spikes on enveloped viruses facilitate viral attachment to host cells.

#3

In the context of viral taxonomy, what does the suffix '-virales' indicate?

Order
Explanation

In viral taxonomy, the suffix '-virales' indicates the order.

#4

Which type of viral nucleic acid is more prone to mutations?

Single-stranded RNA
Explanation

Single-stranded RNA is more prone to mutations among viral nucleic acids.

#5

What is the significance of the 'latent' phase in certain viral infections?

Absence of symptoms
Explanation

The 'latent' phase in certain viral infections is characterized by the absence of symptoms.

#6

What is the primary genetic material in most viruses?

RNA
Explanation

Most viruses use RNA as their primary genetic material.

#7

Which enzyme is essential for the replication of retroviruses?

Reverse transcriptase
Explanation

Reverse transcriptase is crucial for retrovirus replication as it converts viral RNA into DNA.

#8

Which virus is responsible for causing the common cold?

Rhinovirus
Explanation

Rhinovirus is the virus responsible for causing the common cold.

#9

Which viral family does the human immunodeficiency virus (HIV) belong to?

Retroviridae
Explanation

HIV belongs to the Retroviridae family.

#10

What is the process of a bacteriophage injecting its genetic material into a bacterial cell called?

Penetration
Explanation

The process of a bacteriophage injecting its genetic material into a bacterial cell is called penetration.

#11

What is the term for the protein coat surrounding the viral genetic material?

Capsid
Explanation

The protein coat surrounding viral genetic material is called the capsid.

#12

Which of the following viruses causes Hepatitis B?

Hepatitis B virus
Explanation

Hepatitis B virus is responsible for causing Hepatitis B.

#13

What is the mechanism of action of antiviral drugs targeting neuraminidase?

Inhibition of viral release
Explanation

Antiviral drugs targeting neuraminidase work by inhibiting viral release.

#14

What is the target of protease inhibitors in antiretroviral therapy for HIV?

Viral replication
Explanation

Protease inhibitors in antiretroviral therapy target viral replication.

#15

Which of the following is NOT a method of viral transmission in humans?

Mitosis transmission
Explanation

Mitosis transmission is not a method of viral transmission in humans.

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