Two better-known alternatives, antisense and RNA-interference, the latter of which is being used now by Monsanto, can silence or shut down genes but cannot turn them on or make them louder.
They ride the escalator down in silence, staring out the large windows toward Broadway, toward the familiar thickening rush-hour crowd, until they reach the bottom and step off.
That evening, however, my house was weighed down by unusual silence.
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And as if I were waking from a trance, I pushed away the silence, I beat it down with a yes yes yes, of course of course.
Already we existed in a courteous dark silence trembling with your crushed-down rage.
As the air traffic died down, I finally found silence deep enough to get lost in.
Syria will put pressure on the guerrillas to pipe down, but it cannot silence them altogether.
There was a polite round of applause, followed by silence, as Scott made his way down the aisle.
Moments of silence were also held from Canada, down through the United States and even across the Atlantic Ocean to Europe.
The reason for the silence is pretty clear, when you get down to it -- not a lot has changed here.
More than 5, 000 hectares of national park sit in virtual silence, trees arcing back and forth up and down the valleys, which stretch into mountain peaks.
Exhausted rescue teams laid down their tools as a two-minute silence was observed.
Speaking backstage, however, the Silence of the Lambs star insisted the win was all down to Rieu and said he was "just here by happy accident".
If you sit down for a job interview and an awkward silence ensues, consider saying something like, "It's great to be here, thank you so much for spending time with me, " he says.
When he had finished, the publisher lit a cigarette and paced up and down the office for a long time in silence, walking from one wall to the other, a distance of barely three yards.
He drove down an empty Piccadilly, crossed Trafalgar Square in silence, and parked outside the unguarded Buckingham Palace.
In thinking about how to break down what was described as a "conspiracy of silence", the Chief Constable of Great Manchester Police Sir Peter Fahy has told me that key is the question of legitimacy.
The campaign, which launched last week and finishes on 28 February, is the store's attempt to turn down the white noise on modern living through meditation, silence and an awareness of loud branding.
As American voters prepare to choose between Barack Obama and Republican rival Mitt Romney, Afghans fear that the silence over this war during the campaign means it has been relegated further down in U.S. foreign policy priorities.
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He stomped up and down the sidelines, chewed out players for boneheaded moves, demanded silence on the bus after losses.
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At that time, Ehud Olmert, Israel's prime minister, who is to step down after an election on February 10th, had hoped that air raids would silence the missile launchers.
He'd come out of his house, down the hill from Taylor Street -- but he'd sit apart, watching in silence, arms draped across his knees in a pose of solitary sufficiency.
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