【英语时差8,16】基因的组织方式（在线收听）

I know that every cell in my body has a copy of my DNA packed into its nucleus. And I also know that if I could somehow unravel the DNA from a single cell, it would be about six feet long. So my question is, is DNA jammed into the nucleus in a sort of random knot? D:Great question! Scientists know that DNA is able to fit into such a small space because it’s wound tightly around proteins. But scientists also thought that DNA was randomly packed in. Researchers at MIT have figured out that that’s not true.The way that DNA is packed in a cell nucleus is more organized. Y:How so? D:Well, the researches aren’t certain–they’ve only discovered clues. But based on what they’ve found, it seems that parts of DNA that are being transcribed or copied are located together. Y:Cool.But so what?I don't mean to seem on curious,but what is it matter whether we know how DNA is organized？ D:It matters because the way that DNA is organized affects how it works. In fact, other studies have shown that genes that are near each other may affect one another. They can even switch each other on and off. Y:I see. Like most physical objects,I guess that what DNA does depends at least a part on how its part fit together. D:Right.And the more scientist know about those parts,the better they understand how thw whole thing actually works.