Answer
Chromatin is complex material composed of DNA, proteins and some RNA. It is the form in which DNA is packed into the small space of the cell nucleus. In the formation of chromatin, a molecule of DNA is wrapped around proteins called histones and these join to form necleosomes which form the strands of chromatin. The packaging of DNA as chromatin strands saves scarce nuclear space, protects the precious DNA from damage and facilitates cell division and gene expression.
Work Step by Step
There are several non-histone proteins in chromatin : some of these are DNA polymerase and scaffold protein. There is also some RNA in chromatin that has important effects on the functions and euchromatin and heterochromatin two different forms of chromatin.
