SSC
BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
RNA or DNA and a cell membrane
|
|
|
RNA or DNA and a protein coat
|
|
|
RNA and DNA and a protein coat
|
|
|
proteins, cell membrane, and RNA
|
Detailed explanation-1: -The simplest virions consist of two basic components: nucleic acid (single-or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.
Detailed explanation-2: -A virus particle consists of DNA or RNA within a protective protein coat called a capsid. The shape of the capsid may vary from one type of virus to another. The capsid is made from the proteins that are encoded by viral genes within their genome. Viruses do not have nucleic acids or proteins.
Detailed explanation-3: -An RNA virus particle, or virion, consists of an RNA genome (blue) surrounded by a protein coat or capsid (black). Some viruses also have a lipid envelope studded with viral proteins surrounding the capsid (not shown).