The DNA, which is the genetic material in virtually all living cells is found in a long chain of polynucleotides. This long nature of the DNA will prevent it from fitting into the nucleus of eukaryotic cells. Hence, the cell devises a way to make this work by forming a structure called CHROMATIN.
Chromatin is formed when the long DNA molecule wraps around a set of proteins called HISTONE. Histones bind to the DNA molecule, which could are the core of the proteins to form a NUCLEOSOME structure. Each nucleosome is the basic unit of Chromatins. This nucleosome undergoes further coiling to form the CHROMATIN, which eventually forms the chromosomes the genetic material is transferred as in the nucleus.
