NURSING ANM AND GNM

Detailed explanation-1: -The term virus is an example. It derives from the Latin word virus meaning toxin or poison (5).

Detailed explanation-2: -The medieval Latin term was in turn borrowed from the Latin toxicum, meaning ‘poison’, which has its origins in the Greek toxikon pharmakon – lethal poison used by the ancient Greeks for smearing on the points of their arrows.

Detailed explanation-3: -A complete virus particle is called a virion. The main function of the virion is to deliver its DNA or RNA genome into the host cell so that the genome can be expressed (transcribed and translated) by the host cell.

Detailed explanation-4: -Some viruses may have evolved from bits of DNA or RNA that “escaped” from the genes of a larger organism. The escaped DNA could have come from plasmids (pieces of naked DNA that can move between cells) or transposons (molecules of DNA that replicate and move around to different positions within the genes of the cell).