Word: gurdon
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...animal development; that curiosity led to a bachelor's degree in biology at the University of Illinois in 1975, then a second undergraduate degree, in the history and philosophy of science, at Cambridge University on a Marshall Scholarship. Melton remained there for his Ph.D. work, studying under Sir John Gurdon - the first to clone a frog. At Harvard, Melton teaches a frequently oversubscribed undergraduate course on science and ethics, in which he uses his keen sense of logic to provoke. When the class discussed the morality of embryonic-stem-cell research, Melton invited Richard Doerflinger of the U.S. Conference...
Just think: The Game, playing the role of ministers James Pierpont, Thomas Buckingham, and Gurdon Saltonstall: three of the five Connecticut ministers credited with the founding of Yale University. And 50 Cent, playing the role of John Harvard, the spiritual leader responsible for us, that “unsatisfactory” educational monopoly in the Northeastern American colonies...
...grand jury has indicted 24 people connected with U.S. Oil and Gas, including Gurdon Wolfson, the company's owner and president, and Larry Waxman, its executive director, for fraud and conspiracy. All pleaded not guilty; if convicted, they face possible fines of $10,000 and three years in prison. In addition, Federal District Judge William Hoeveler, acting on a civil suit filed by the Federal Trade Commission, last week issued an injunction to prevent U.S. Oil and Gas from continuing its fraudulent sales. He froze the company's assets and in effect put it out of business. Said...
...early 1960s, British Biologist John B. Gurdon took the technique a step further by replacing the nuclei of unfertilized eggs with the nuclei of cells that had differentiated into intestinal cells of young tadpoles. Some of the resulting cloned tadpoles matured into adult frogs. There have since been reports of successful cloning with nuclei from adult frog cells, but researchers have found that the best results are obtained by using the nuclei from cells of frogs in the early stages of embryonic development. The nuclei of adult animal cells are generally considered poor cloning material, possibly because many...
...Gurdon experiments still represent the high-water mark of traditional cloning technique. Researchers find that cloning mammals is a much more complicated affair. For one thing, mammalian eggs are one-tenth to one-twentieth the size of frog eggs and thus difficult to manipulate. And while tadpoles grow into frogs in a pond (and therefore easily in a laboratory tank), mammalian embryos must develop in a womb...