Protein coat the capsid of adenovirus is________________?
Correct answer: B. Surrounding genome
- A. Surrounded by genome
- B. Surrounding genome
- C. Surrounding the envelope
- D. Both B and C
Explanation
The capsid is the protein shell that encloses and protects the viral genome. Adenovirus is non-enveloped, so its capsid surrounds the genome and there is no envelope for it to surround. Students may choose d by confusing the capsid with the envelope found in enveloped viruses.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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