Word: gene
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Dates: during 1970-1979
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...DIED. Gene Tunney, 81, former world heavyweight boxing champion who twice defeated Jack Dempsey before retiring undefeated in 1928; of a heart attack; in Greenwich, Conn, (see SPORT...
...them in their halcyon days would ever forget them: Gene Tunney, the perfectly controlled ring tactician; Bobby Hull, hockey's most explosive scorer; Bobby Orr, the greatest defenseman, graceful and creative, in hockey history. Tunney died last week at 81, and Orr retired at 30, just seven days after Hull quit at 39. They were three of sport's heroic figures. Consummate athletes, they came to be respected as much for their character as for their skills...
...just a fantastic and powerful tool," Doty says. This method of including E. coli to clone many copies of the DNA template is cheap, efficient, and, above all, it produces pure mixtures of the DNA. Despite gene splicing abilities, which may speed up the work by years, Doty says without any hint of discouragement, "disecting out what any of this means is going to take a tremendous amount of time...
...Gene splicing is a technique for recombining genetic material in which the tape is DNA, a molecule which codes in a four-letter alphabet for the various proteins which are vital for the, functioning of every cell. Researchers use a chemical scalpel--restriction enzymes--which attack DNA at specific sites, breaking it and exposing two "sticky" ends to which a new piece of DNA--a gene--can be attached...
...Genes from other organisms [3] are inserted into the DNA of E. coli bacteria which copies and decodes DNA rapidly. A ring of DNA--a plasmid--which is transferred between bacteria, is used for the incorporation procedure. It is easily isolated from a bacterial cell [1], cut open [2] and used as a receptor for a foreign gene [4]. The plasmid then carries the inserted DNA into a cell [5] where many copies can be "cloned...