Here's a breakdown:

* Interphase: This is the longest phase of the cell cycle, where the cell grows and copies its DNA.

* Chromatin: This is the uncondensed form of DNA. It's a complex of DNA and proteins that is found in the nucleus of eukaryotic cells. Chromatin appears as a tangled, thread-like mass under a microscope.

* Why not chromosomes? Chromosomes are the condensed, X-shaped structures that form during mitosis and meiosis. While the DNA is duplicated during interphase, it doesn't condense into chromosomes until the cell enters the mitotic phase.

In summary: At the end of interphase, DNA exists as chromatin, which is a less compact form compared to the chromosomes that are visible during cell division.