Answer:
Chromatin is a complex of DNA and protein found inside the nuclei of cells. The major proteins involved in chromatin are histone proteins. DNA is packaged into chromatin thereby decreasing the size of the molecule and allowing the cell to control the chromatin-packaged genes. Chromatin structure is also relevant to DNA replication and DNA repair. Easier Definition Mass of genetic material composed of DNA and proteins that condense to form chromosomes in eukaryotic cell division. Chromatin is located in the cell's nucleus.
It contains information that controls metabolism and heredity.