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Properties of Viruses Quiz

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Questions and Answers

What is the basic structure of viruses?

Protein capsule and nucleic acid (correct)

Cell membrane and DNA

Polysaccharide coat

Lipid bilayer

How do viruses multiply?

Through independent cellular division

By undergoing photosynthesis

By replicating their genetic material inside the host cell (correct)

By carrying out respiration

Which of the following is true about viruses?

Their nucleic acid can be both DNA and RNA simultaneously.

Viruses are considered living organisms.

They are smaller than bacteria. (correct)

They can perform metabolic processes independently.

What is the function of a capsid in viruses?

To help in viral attachment to the host cell Signup and view all the answers

Prions are known for causing which disease in humans?

Spongiform encephalopathy Signup and view all the answers

How do protozoa primarily reproduce?

Through binary fission Signup and view all the answers

What is the primary function of a capsid in viruses?

Enclosing and protecting the nucleic acid Signup and view all the answers

Which statement about viruses is accurate based on the text?

Viruses lack enzymes for most metabolic processes. Signup and view all the answers

In the bacteriophage life cycle, what occurs after the penetration stage?

A DNA copy of viral RNA is made. Signup and view all the answers

Which characteristic is NOT true for protozoa based on the provided text?

Protozoa can reproduce only through sexual methods. Signup and view all the answers

Which type of infectious agent lacks a capsid or any other type of coating?

Prions Signup and view all the answers

How do most human parasites reach a new host after leaving an infected host?

By finding and entering a new host via vectors Signup and view all the answers