Here's a breakdown:

* Chromatin: A complex of DNA and protein that makes up chromosomes within the nucleus of eukaryotic cells.

* DNA: The genetic material of an organism.

* Proteins: Primarily histones, which help to package and organize the DNA.

During cell division, chromatin condenses into chromosomes. But in nondividing cells, chromatin exists in a less condensed form, allowing for access to the DNA for processes like transcription and replication.