A virus is an obligate intracellular parasitic acellular microorganism, consisting of protein coat and nucleic acid DNA or RNA and may be enveloped or not. It is a particle that is not defined as being alive, that goes inside you and attacks your cells, and inserts their DNA into your cell, so that your cell makes more of the virus instead of making more of itself.
If you mean in computers, its when malicious code is running in your computer and doing damage. Just like a biological virus, Computer Viruses alter existing code and produce more copies of itself. But it is just computer code and not anything that is alive. If you have this, you should run antivirus software or get help from a computer professional.
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.
A single cell virus particle is called a virion. It consists of genetic material enclosed in a protein coat.
virus
virus
enymes----like HIV it has reverse transcriptase
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.
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.
virus
enymes----like HIV it has reverse transcriptase