Experimental evidence suggests that the human genome may bundle into these unknotted fractal globules.
Image credit: Miriam Huntley (Harvard University), Erez Lieberman Aiden (Harvard University Society of Fellows, Broad Institute Visiting Scientist).
This long polymer folded into a 'fractal globule' is extraordinarily dense, but completely unknotted. Experimental evidence indicates that the human genome may fold into fractal globules. This structure keeps genetic information compact, yet highly accessible.