A virus consists of a nucleic acid core (either DNA or RNA) surrounded by a protein capsid, and in some cases, a membrane. This is the defining characteristic of a virus, which distinguishes it from both cells (which have both nucleic acids and proteins, but also many other components) and prions (which consist solely of protein).

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A Virus Consists of

Question 233

Multiple Choice

A virus consists of

A) a protein core and a nucleic acid capsid.
B) a cell wall surrounding nucleic acid.
C) RNA and DNA enclosed in a membrane.
D) a nucleic acid core surrounded by a protein capsid, and in some cases, a membrane.
E) a nucleic acid core surrounded by a cell membrane.

Correct Answer: