either DNA or RNA but never both
A virus
a virus
A virus particle that does not have a host is called a "virion." Virions are the infectious form of a virus that is capable of spreading to other hosts.
Every virus has two main parts: a protein coat called capsid that surrounds and protects the genetic material, and the genetic material itself which can be DNA or RNA. The genetic material contains the instructions needed for the virus to replicate and infect host cells.
A single cell virus particle is called a virion. It consists of genetic material enclosed in a protein coat.
A virus is a particle with DNA but no nucleus or cell wall.
it will enter from air
no metabolism
If it consists only of these two components it is a virus.
Virus
virus
A virus or a prion.