MeSH definition : The repeating structural units of chromatin, each consisting of approximately 200
base pairs of DNA wound around a protein core. This core is composed of the histones
H2A, H2B, H3, and H4.;
The repeating structural units of chromatin, each consisting of approximately 200
base pairs of DNA wound around a protein core. This core is composed of the histones
H2A, H2B, H3, and H4.