And Around The Far Turn, It's E. Coli Dna By A Nose...

Scientists at Los Alamos National Laboratory are spending their days at the track--the molecule track, that is. The researchers have found that racing molecules down an electrified "drag strip" provides a measure of their size based on their finish time. Short molecules finish faster because they encounter less resistance. These races may speed up the mapping and sequencing of DNA--the goal of the federal government's Human Genome Project--by delivering a molecular profile in under a second.

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