When packaged in the virus, the complex of nucleic acid and protein is known as the:

• A. Capsid.
• B. Nucleoplasmid.
• C. Nucleocapsid.
• D. Envelope.

Answer: (C)

Verified step by step guidance

1. Understand the structure of a virus: A virus typically consists of genetic material (nucleic acid), a protein coat, and sometimes an envelope.
2. Identify the components: The nucleic acid can be either DNA or RNA, and the protein coat is known as the capsid.
3. Define the term 'nucleocapsid': The nucleocapsid is the complex formed by the nucleic acid and the capsid protein.
4. Differentiate between terms: The capsid is just the protein coat, while the nucleocapsid includes both the nucleic acid and the capsid.
5. Recognize the correct term: When the nucleic acid is packaged with the protein coat in a virus, it is referred to as the nucleocapsid.