good efforts haruna. on my part i believe that jinns are a being just like we are. are they a virus, unless some one explains what consist of a virus, i cannot accept that claim.
Haruna Darbo <[log in to unmask]> wrote:
Could the two be one and the same? Enquiring minds want to know. Dibassey
I'm trying to help you in your lifetime of angst. We may discover something
together with Suntou. Avogadro's contemporaries thought he were silly too.
Haruna. And he never obtained an invite to the infamous gaseous conference in
Nouackchott.
Ed Rybicki, a virologist at the University of Cape Town in South Africa,
answers:
Tracing the origins of viruses is difficult because they don't leave fossils
and because of the tricks they use to make copies of themselves within the
cells they've invaded. Some viruses even have the ability to stitch their own
genes into those of the cells they infect, which means studying their ancestry
requires untangling it from the history of their hosts and other organisms.
What makes the process even more complicated is that viruses don't just
infect humans; they can infect basically any organism—from _bacteria_
(http://www.sciam.com/topic.cfm?id=bacteria) to horses; seaweed to people.
Still, scientists have been able to piece together some viral histories,
based on the fact that the genes of many viruses—such as those that cause herpes
and mono—seem to share some properties with cells' own genes. This could
suggest that they started as big bits of cellular DNA and then became independent—
or that these viruses came along very early in _evolution_
(http://www.sciam.com/topic.cfm?id=evolution) , and some of their DNA stuck around in cells'
genomes. The fact that some viruses that infect humans share structural
features with viruses that infect bacteria could mean that all of these viruses have
a common origin, dating back several billion years. This highlights another
problem with tracing virus origins: most modern viruses seem to be a
patchwork of bits that come from different sources—a sort of "mix and match" approach
to building an organism.
The fact that viruses like the deadly Ebola and Marburg viruses, as well as
the distantly related viruses that cause measles and rabies, are only found
in a limited number of species suggests that those viruses are relatively new—
after all, those organisms came along somewhat recently in evolutionary time.
Many of these "new" viruses likely originated in insects many million years
ago and at some point in evolution developed the ability to infect other
species—probably as insects interacted with or fed from them.
HIV, which is thought to have first emerged in humans in the 1930s, is
another kind of virus, known as a retrovirus. These simple viruses are akin to
elements found in normal cells that have the ability to copy and insert
themselves throughout the genome. There are a number of viruses that have a similar
way of copying themselves—a process that reverses the normal flow of
information in cells, which is where the term "retro" comes from—and their central
machinery for replication may be a bridge from the _original life-forms on this
planet_
(http://www.sciamdigital.com/index.cfm?fa=Products.ViewIssuePreview&ARTICLEID_CHAR=6A1A42E0-16E8-4F62-A20A-233B2E760B1) to what we know as life
today. In fact, we carry among our genes many "fossilized" retroviruses—left
over from the infection of distant ancestors—which can help us trace our
evolution as a species.
Then there are the viruses whose genomes are so large that scientists can't
quite figure out what part of the cell they would have come from. Take, for
instance, the largest-ever virus so far discovered, mimivirus: its genome is
some 50 times larger than that of HIV and is larger than that of some bacteria.
Some of the largest known viruses infect simple organisms such as amoebas
and simple marine algae. This indicates that they may have an ancient origin,
possibly as parasitic life-forms that then adapted to the "virus lifestyle."
In fact, viruses may be responsible for significant episodes of evolutionary
change, especially in more complex types of organisms.
At the end of the day, however, despite all of their common features and
unique abilities to copy and spread their genomes, the origins of most viruses
may remain forever obscure.
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