The world's first "artificial life" was born in the United States (Figure)
Called "man-made children" artificial bacteria kernel
American biologist Craig Venter manufacturing process of life
U.S. scientists create artificial genes controlled entirely by the single-cell bacteria
20, U.S. scientists announced the world's first artificial life --- is entirely man-made gene-controlled single-cell bacteria was born, and named it as "man-made children." This landmark experiment showed that new life forms in the laboratory "was created," not necessarily have to "evolve" to complete. "The arrival of a new era" The study was funded by the United States and genetics over the top scientists Craig Venter, lasted 10 years, spent more than 40 million U.S. dollars. Research team a total of more than 20 scientists. Called "man-made children" is the transplant of artificial bacteria core laboratory, completely synthetic genome. Where Dr. Dement said it means "a new era." Scientists first select a bacterium called Mycoplasma mycoides, to decode the genome and its replication, resulting in the synthesis of man-made genome. Then, the artificial genome transplantation into another bacteria called mycoplasma goats, by division and proliferation, bacterial cells within the synthetic gene under the control gradually and eventually become a new life. In the culture dish, split synthesis acts such as bacteria as natural bacteria. Scientists in the "man-made children" DNA on to write four "watermark sequence", so different from the kind of natural bacteria, and the descendants of creatures to identify its "ancestors." "When the cells with a watermark with him, we went into raptures, it is a living creatures, and to become a part of all life on Earth." Where Dr. Dement said. Application prospect Although this technology is still in experimental stages, but researchers believe the use of bright future. The team plans, first to synthesize Ke Gong life on the minimum number of genes, and then covering other genes to which, Zhi Zao series of new micro-organisms, Biru biofuel-producing bacteria, useful for the Yaopin, carbon dioxide can be absorbed from the air bacteria and other pollutants or proteins required for the manufacture of synthetic vaccines. Principles of Artificial Life icon 1. Scientists select a bacterium called Mycoplasma mycoides, decoding its chromosome. Then, little by little chemical methods to rearrange the DNA. 2. The recombinant DNA fragments into the yeast solution, so that it slowly re-aggregation. 3. The artificial receptor DNA into another bacterium. Through the growth and separation of bacteria 2 receptor cells with a synthetic DNA, the other with natural DNA. 4. A Petri dish with a natural antibiotic to kill the DNA of the cell, leaving only the continued proliferation of man-made cells. 5. A few hours, the receptor DNA in bacteria all traces of the original all but disappeared, the artificial cells are constantly breeding. New life was born. ■ Links Opponents said the "open Pandora's Box" "Create life" once again stirred up the old argument: if humans can play God's role? Ethics of the University of Oxford Professor Zhu Popescu said: "All special push the most important in human history, the most basic peep through that door --- the essence of life. He played a direct role of God --- create a new life that does not exist in nature originally. " A "human genetics warning" of the group leaders David King said: "Any special research is tantamount to opening Pandora's Box." Opponents argue that, if spread to the artificial nature of organisms, triggered biological genetic changes, may cause an environmental disaster, they may also be used to make biological weapons.
