Here's why:

* Chromatin: DNA is normally found in a relaxed, string-like form called chromatin within the nucleus of a cell.

* Condensation: During cell division (mitosis or meiosis), the chromatin needs to be organized and condensed to ensure that each daughter cell receives a complete copy of the genetic material.

* Chromosomes: This condensed form of DNA is called a chromosome. Each chromosome is essentially a tightly packed and organized bundle of DNA, making it easier to separate and distribute during cell division.

Let me know if you have any other questions!