Bruce Lahn, professor of human genetics at the University of Chicago, anticipates the ability to produce“unlimited supplies” of transplantable human organs without the needed a new organ, such as kidney, the surgeon would contact a commercial organ producer, give him the patient’s immuno-logical profile and would then be sent a kidney with the correct tissue type.
These organs would be entirely composed of human cells, grown by introducing them into animal hosts, and alloweing them to deveoop into and organ in place of the animal’s own. But Prof. Lahn believes that farmed brains would be “off limits”.He says: “Very few people would want to have their brains replaced by someone else’s and we probably don’t want to put a human brain ing an animal body.”
Richard Miller, a professor at the University of Michigan, thinks scientist could develop“an thentic anti-ageing drugs” by working out how cells in larger animals such as whales and human resist many forms of injuries. He says:“It’s is now routine, in laboratory mammals, to extend lifespan by about 40%. Turning on the same protective systems in people should, by 2056, create the first class of 100-year-olds who are as vigorous and productive as today’s people in their 60s”
Aliens
Conlin Pillinger ,professor of planerary sciences at the Open University,says:”I fancy that at least we will be able to show that life didi start to evolve on Mars well as Earth.”Within 50years he hopes scientists will prove that alien life came here in Martian meteorites(陨石).
Chris McKay,a planetary scientist at NASA’s Ames Research Center.believes that in 50 years we may find evidence of alien life in ancient permanent forst of Mars or on other planers.
He adds:”There is even a chance we will find alien life forms here on Earth.It mightbe as different as Engl
