Here's why:

* DNA is the genetic material: It contains the instructions for building and maintaining an organism.

* Chromatin is a complex of DNA and proteins: These proteins help to organize and package the DNA, preventing it from becoming tangled.

* Uncoiled state: When the cell is not dividing, the DNA exists in a relaxed, uncoiled state as chromatin.

During cell division: The chromatin condenses and becomes tightly packed into structures called chromosomes. This makes it easier to divide the DNA evenly between the two daughter cells.