|
A VIRUS
A virus is an ultramicroscopic infectious organism that,
having no independent metabolic activity, can replicate
only within a cell of another host organism.
A virus
consists of a core of nucleic acid, either RNA or DNA,
surrounded by a coating of antigenic protein and sometimes
a lipid layer surrounds it as well.
The virus provides the genetic code for replication,
and the host cell provides the necessary energy and
raw materials. ...
The Ebola virus, which dates back to 1976,
has four strains each from a different geographic area,
but all give their victims the same painful, often lethal
symptoms.
Approximate Word count = 390 Approximate Pages = 1.6 (250 words per page double spaced)
|
|