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- "So the most amazing thing that we found was that we can ascribe some kind of biochemical activity to 80 percent of the genome. And this really kind of debunks the idea that there's a lot of junk DNA or really if there is any DNA that we would really call junk," NHGRI's Feingold said.
What has been called junk DNA is actually teeming with an intricate web of molecular switches that play crucial roles in regulating genes. The ENCODE project scientists found at least 4 million of these regulatory regions so far.