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HUMAN-cow embryos have been created in a world first at Newcastle University in England, hailed by the scientific community, but labelled "monstrous" by opponents.
A team has grown hybrid embryos after injecting human DNA into eggs taken from cows' ovaries, which had most of their genetic material removed.
The embryos survived for three days and are intended to provide a limitless supply of stem cells to develop therapies for diseases such as Alzheimer's, Parkinson's and spinal cord injuries, overcoming a worldwide shortfall in human embryos.
Dr Teija Peura, director of human embryonic stem cell laboratories at the Australian Stem Cell Centre, said somatic cell nuclear transfer (SCNT) had been done between animal species, but the "99 per cent human" embryos could boost research.
Mayo researchers observe genetic fusion of human, animal cells -may help explain origin of AIDS
Mayo Clinic genomics researchers are the first to demonstrate that mixing of genetic material can occur naturally, in a living body. The researchers have discovered conditions in which pig cells and human cells can fuse together in the body to yield hybrid cells that contain genetic material from both species and carry a swine virus similar to HIV (the virus that causes AIDS) that can infect normal human cells.
Viruses Found Transmitting Genes Among Bacteria
Like tiny mail-carriers, viruses are able to carry packages of genes around the world, delivering the keys of evolution to other organisms.
This finding comes from a new study of the viruses and bacteria found in nine distinct locations on Earth (such as mines, ponds, oceans, reefs and even human bodies) and sheds light on the complex power swaps among viruses called phages and their bacterial hosts.