the origin of viruses?

Question

i wanna know about how the viruses actually originated..........?
i dont mean the life cycle of viruses , i wanna know how they actually originated...

say HIV ,,,,,,, .............

how did HIV originate

for example humans have a chain of organisms before their origin like monkeys and apes.. and like wise i want to know how did a virus originate,,

i know it has got a protien coat and a core of genetic material and so on but how exactly did this thing originate..........!!


NO THEORIES WITH OUT PROOFS PLEASE

i know the monkey stuff for it to spread from the monkeys it needs to take birth and i wanna know which bacteria or any organism gave birth to a virus after may be some mutation or any thing



and god stufff...............!
i don believe thats the answer
people relate every unknown thing to god and when the answer is found they pop another question

please don talk about GOD stuff here after

Answer 1

The origins of modern viruses are not entirely clear, and there may not be a single mechanism of origin that can account for all viruses. As viruses do not fossilise well, molecular techniques have been the most useful means of hypothesising how they arose. There are two main hypotheses that currently exist:

1.) Small viruses with only a few genes may be runaway stretches of nucleic acid originating from the genome of a living organism. Their genetic material could have been derived from transferable genetic elements such as plasmids or transposons, which are prone to moving around, exiting, and entering genomes.
2.) Viruses with larger genomes, such as poxviruses, may have once been small cells which parasitised larger host cells. Over time, genes not required by their parasitic lifestyle would have been lost in a streamlining process known as retrograde- or reverse-evolution. Both the bacteria Rickettsia and Chlamydia are living cells which, like viruses, can only reproduce inside host cells. They lend credence to this hypothesis, as they are likely to have lost genes which enabled them to survive outside a host cell in favour of their parasitic lifestyle.

Answer 2

2

Answer 3

Viruses are some of the most basic life forms and have been around since the begining of time. they're minimally evolved organisms related to the one celled orgasisms like protozoa or plasmids. they're evolutionary speaking effective and efficient reproducers, utilizing the body of their host to parasitically thrive and multiply. There are many cases of viruses and bacteria that live simbiotically with the host without disturbing it, (ie the human gut flora), but generally, they're not drived from any other organisms, they're mutant variations of the original life forms.

Answer 4

If u asked the origin of the computer viruses, its easy to answer, they have been originated by the producers of the antiviruses of corz.

I dont want to think the HIV viruses have been originated by human, but unfortunately may be.

Answer 5

Owing to their simplicity, viruses were at first considered to be the primordial life-forms. This concept is almost certainly incorrect because viruses are completely devoid of the machinery for life processes; therefore, they could not have survived in the absence of cells. Viruses probably evolved from cells rather than cells from viruses. It seems likely that all viruses trace their origins to cellular genes and can be considered as pieces of rogue nucleic acids. Although it is easier to imagine the cellular origin of DNA viruses than RNA viruses, the RNA viruses conceivably could have had their origins from cellular RNA transcripts made from cellular DNA. In fact, the discovery that many cells contain reverse transcriptase capable of converting RNA to DNA seems to suggest that conversion of RNA to DNA and DNA to RNA is not rare. Indeed, some speculate that RNA is the primordial genetic information from which DNA evolved to produce more complex life-forms.

Other possible progenitors of viruses are the plasmids (small circular DNA molecules independent of chromosomes), which are more readily transferred from cell to cell than are chromosomes. Theoretically, plasmids could have acquired capsid genes, which coded for proteins to coat the plasmid DNA, converting it into a virus.

In brief, it is likely that viruses originated from the degradation of cellular nucleic acids, which acquired the property of being readily transferable from cell to cell during the process of evolution. The fact that normal proto-oncogenes of a cell have nucleic acid sequences that are almost identical to the oncogenes of retroviruses lends credence to the theory that viruses originated from cellular genes.

Answer 6

viruses are made in labs, the HIV was made to kill people in Africa, but the experiment went bad, there wasn't such thing as HIV hundred of years ago, if you knew how HIV virus worked you would understand that it was made by humans

Answer 7

Viruses have been around for ever, at least longer than man. So, humans could not have made them. I do believe that we have experimented with them too much. But, how else would we have created vaccines for them?

Answer 8

HIV. From green monkeys to man.

Answer 9

God. You need no proof with god. that's the beauty of it.

Answer 10

the government is to blame, and organizations such like the w.h.o and cdc