常速英语

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To live on Earth is to live as part of a network: a giant web where almost every creature depends on others for survival. These networks are so complex that it's difficult to predict how resilie...

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Using computer animation based on molecular research, we are now able to see how DNA is actually copied in living cells. You are looking at an assembly line of amazing miniature biochemical machin...

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This is a map of someone’s brain, showing roughly which areas respond when they hear different words. For example, there’s a small area in the middle frontal gyrus that reliably responds to hearin...

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The first method of sequencing the genetic code was devised by Fred Sanger. To sequence the DNA, it must first be separated into 2 strands. The strand to be sequenced is copied using chemically altere...

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Shotgun sequencing is the method that was used by the private genome project. Shotgun sequencing requires multiple copies of the genome, which are effectively blown up into millions of small fragments...

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Tornadoes occur in every continent, except Antarctica but more form over the central United States than anywhere else in a zone called Tornado Alley. That's because conditions in the Alley are ...

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Sickle cell anemia is a genetic disease that affects hemoglobin, the oxygen transport molecule in the blood. The disease gets its name from the shape of the red blood cells under certain conditions. S...

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Somewhere in the Universe is a small blue planet, the third rock from a star called the Sun, just one of billions of stars in a spiral galaxy known as the Milky Way. But where in the Universe i...