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Multiple Choice
In the context of viral structure, what is the protein coat of a virus called?
A
Envelope
B
Cell wall
C
Capsid
D
Nucleoid
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Verified step by step guidance
1
Understand that viruses have a protective outer layer that surrounds their genetic material.
Recall that the protein coat specifically surrounding the viral nucleic acid is called the capsid.
Differentiate the capsid from other structures: the envelope is a lipid layer some viruses have outside the capsid, the cell wall is a feature of bacteria, and the nucleoid refers to bacterial DNA regions, not viral structures.
Recognize that the capsid is made up of protein subunits called capsomeres, which protect the viral genome and aid in its delivery to host cells.
Conclude that the correct term for the protein coat of a virus is the capsid.