Figure 1

Histone structure and nucleosome assembly. A nucleosome contains an octamer of histone molecules. An octamer contains an H3-H4 tetramer and two H2A-H2B dimers.
Histone structure and nucleosome assembly. A nucleosome contains an octamer of histone molecules. An octamer contains an H3-H4 tetramer and two H2A-H2B dimers.