A2.3 Viruses Flashcards

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1
Q

What is a virus?

A

A non-cellular parasite of animals, plants and bacteria that consists of nucleic acid surrounded by a protein coat (a capsid)

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2
Q

What is a parasite?

A

An organism that lives on or in another organism (its host), deriving nutrients from its host

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3
Q

What are the common features of viruses?

A

They are extremely small; They have nucleic acid (DNA or RNA) as genetic material; A capsid made of protein surrounds the nucleic acid; No cytoplasm; Few or no enzymes.

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4
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