Word: sheeps
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Dates: during 1990-1999
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Extraordinary claims, scientists like to say, require extraordinary proof, and none has been more extraordinary in recent years than Scottish embryologist Ian Wilmut's claim that he and his colleagues had cloned a sheep named Dolly from a mammary cell of a pregnant ewe. More than a year later, nobody has managed to reproduce the Dolly experiment, and Wilmut is under growing pressure to prove that his famous sheep is what he says she is. Last week at a genetics meeting at the University of Louisville, in Kentucky, he blandly conceded that there was a "remote possibility" that there could...
Cloning individual human cells, however, is another matter. Biologists are already talking about harnessing for medical purposes the technique that produced the sheep called Dolly. They might, for example, obtain healthy cells from a patient with leukemia or a burn victim and then transfer the nucleus of each cell into an unfertilized egg from which the nucleus has been removed. Coddled in culture dishes, these embryonic clones--each genetically identical to the patient from which the nuclei came--would begin to divide...
Daily Spin "We're more interested in the 277 failures than in the success." -- Acting FDA commissioner Dr. Michael Friedman, on the number of tries it took to clone a sheep. Friedman was explaining one reason the agency intends to block attempts to clone humans...
Last year Dolly the cloned sheep was received with wonder, titters and some vague apprehension. Last week the announcement by a Chicago physicist that he is assembling a team to produce the first human clone occasioned yet another wave of Brave New World anxiety. But the scariest news of all--and largely overlooked--comes from two obscure labs, at the University of Texas and at the University of Bath. During the past four years, one group created headless mice; the other, headless tadpoles...
...Sept. 19, 1783, at Versailles, the first aeronauts--a sheep, a rooster and a duck--take to the sky in the Montgolfier brothers' hot-air balloon. On Nov. 21, Jean Francois Pilatre de Rozier and the Marquis d'Arlandes drift over Paris in a Montgolfier, achieving the first manned free flight (2). Asked what good are balloons, U.S. envoy Ben Franklin replies, "What good is a newborn baby?" The English Channel is crossed in 1785, and ballooning soon becomes the stuff of daredevils (3). But in 1794 the world's first air force is born: warring France uses tethered balloons...