A human cell harbors roughly 2 meters of DNA, encompassing the essential genetic information of an individual. If one were to unwind and stretch out all the DNA contained within a single person, it would span a staggering distance—enough to reach the sun and back 60 times over. In order to manage such an astounding volume of biological information, the cell compacts its DNA into tightly packed chromosomes.
Click here for original story, New method can manipulate the shape and packing of DNA
Source: Phys.org