Chromatin is known to be composed of proteins and DNA. There are also times when the chromatin will also be in charge of RNA. These will form within the nucleus of eukaryotic cells.
This is in charge of packaging unique DNA so that the DNA sequence will be protected properly. As the blood cell becomes more mature, the blood cell also becomes more dense. DNA is highly important because it has the ability to create structures that will make living things have the right structure in order to survive.