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What is a capsid?

A. A tube that extends from a bacteria
B. A piece of bacterial DNA
C. A protective shell around a virus
D. A virus that causes a cold


Sagot :

Final answer:

Capsids are protein subunits that form the protective outer shell of a virus.


Explanation:

Capsids are the protein subunits that make up the outer protein shell, known as the capsid, of a virus. The capsid's primary function is to protect the virus's genetic material and facilitate its entry into host cells. It is essential for the virus's infectivity and ability to interact with host cell receptors.


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