Word: marker
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Dates: during 1980-1989
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...downtown Greensboro, a marker notes the 1960 Woolworth's sit-ins by black North Carolina Agricultural and Technical State University students. "Sure, you can't come in here as a black man and not feel a sense of history," says Terry Woods, a technician, as he sits at a once segregated lunch counter. "We get along with whites here," says Woods, 33. "I am not going to vote for a man because of the color of his skin." But, he adds, "I do like Jesse, because I like to think that one day a black man will be there...
...grader. The true master of a generality is the man who can write a 10-page essay, which means nothing at all to him, and have it mean a great deal to anyone who reads it. The generality writer banks on the knowledge possessed by the grader, hoping the marker will read things into his essay...
...researchers could develop medical tests that identify biochemical signposts indicating a predisposition to alcoholism, they could warn potential alcoholics before trouble started. SUNY's Begleiter found just such a potential marker in the brain. By using an electroencephalogr aph to measure the brain waves of nondrinking sons of alcoholic fathers, Begleiter discovered that a particular brain wave called the P3 showed a dampened response. In each instance the sons' brain waves closely duplicated those of their fathers, while other subjects with no family history of alcoholism showed strong P3 waves. In addition, Dr. Marc Schuckit, a researcher...
...National Wildlife Federation's biotechnology project: "This system is an important advance. In and of itself, it doesn't answer questions about whether bioengineered organisms are in general more or less safe than their natural counterparts. But it allows you to answer some of the questions. The marker system puts a little identity tag on the organism...
Indeed, the ability to track recombinant bacteria through the environment has become a crucial factor in getting EPA approval for a release. The lack of an effective marker has, for example, held up a test by Biotechnica International, a Cambridge, Mass., firm, of Rhizobium bacteria altered to boost their ability to fix nitrogen in the soil. In one of the California ice- minus tests, however, scientists have been able to monitor the spread of anti- icing bacteria on potato plants. The marker system in this case was rifampicin resistance, less sensitive than Monsanto's multiple indicator but still able...