Ancestor Virus on HIV-1 & HIV-2
Biologists concerned with the origin of species, family trees are the origin of species maps. On a pedigree you can see which species are closely related to each other and their common ancestor. A family can make based on appearance. So paleontologists managed on the basis of fossils to create a family tree showing how to read a prehistoric horse has evolved to a horse as we see trot in the pasture. But a tree does not only the origin of species to map out long since become extinct. You can also create a family tree of your own origins which are your direct ancestors. A tree containing yourself, your father and mother, your grandparents and your grandparents instance you can make under contract by using pictures. But probably a more reliable pedigree under the line of your DNA. Your DNA seems more like your father than that of your grandfather, because you’re more akin to your father or your grandfather. Now for a pedigree of the HIV DNA has been making a lot of different variants of the virus compared. To find out which “ancestor virus” on HIV-1 and HIV-2 belongs to biologists find a virus whose viral DNA resembles that of HIV-1 or HIV-2. They look as it were closely related viruses, like, cousins of HIV.
This nephews and niece viruses found in monkeys in Africa. The nephew of HIV called SIV. The S in SIV simian comes from the English word that means ape-like. There are already 26 known species of monkeys that carry the virus, ranging from chimpanzees. Monkeys infected with SIV themselves are not ill and get no monkey-AIDS, but the virus can transmit it to other monkeys and people. This is described further reading.
A person is zero positive for 