NURSING ANM AND GNM

Detailed explanation-1: -Viruses consist of a nucleic-acid core surrounded by a protein capsid with or without an outer lipid envelope.

Detailed explanation-2: -A virus is made up of a core of genetic material, either DNA or RNA, surrounded by a protective coat called a capsid which is made up of protein.

Detailed explanation-3: -In the simpler viruses the virion consists of a single molecule of nucleic acid surrounded by a protein coat, the capsid; the capsid and its enclosed nucleic acid together constitute the nucleocapsid.

Detailed explanation-4: -A virion consists of a nucleic acid core, an outer protein coating or capsid, and sometimes (notably among viruses that infect animal cells) an outer envelope made of protein and phospholipid membranes derived from the host cell. Viruses may also contain additional proteins, such as enzymes.

Detailed explanation-5: -Definition. A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat. A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself.