Word: isolateed
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To probe cellular gene activity en masse, scientists first isolate the molecules that translate genes into proteins. They then copy these molecules into their corresponding DNA sequences, tag those sequences with fluorescent markers and pour the tagged sequences over the microarray. Active genes in this biochemical stew stick like Velcro...
For years doctors tried to stir immune reactions against cancers with a weakened tuberculosis bacterium called bacille Calmette-Guerin (BCG), but had only middling success. What has given the old idea a shot in the arm, so to speak, is biotechnology. Researchers like NCI's Dr. Steven Rosenberg have been...
The school is also meant to test how best to teach underprivileged kids. Yet the plenitude of educational gifts heaped upon students at Preuss--small classes, a rigorous curriculum, tutors--makes it hard to isolate which reforms matter most. But students like Rucobo don't mind, and the test scores...
The Bush Challenge: To come up with ways of combating the Bin Laden threat that project toughness without succumbing to the temptation to grandstand. More important, to recognize that Bin Laden's influence is growing in an Arab political context where hostility to the U.S. is widespread, and to begin...
To maintain power, Bedie manipulated xenophobic tendencies unleashed by political competition and championed a notion of "Ivoirite," which distinguished "real" Ivorians from latecomers to this prosperous nation. Immigrants from neighboring countries constitute nearly a quarter of the Ivoirian population and were vital in forging the country's economic success. Yet...