Nucleosome: In eukaryotesplugin-autotooltip__default plugin-autotooltip_bigeukaryote: organism whose cells have membrane bound organelles, including the nucleus., approximately 146 bp of chromosomalplugin-autotooltip__default plugin-autotooltip_bigChromosome: a structure that organizes dsDNA in a cell through interactions with various DNA binding proteins. DNAplugin-autotooltip__default plugin-autotooltip_bigDNA: deoxyribonucleic acid. The genetic material for nearly all life on Earth. wraps around a histoneplugin-autotooltip__default plugin-autotooltip_bigHistone: in eukaryotes, histones are proteins that are used to organize DNA within the nucleus. Eight different individual histone proteins come together to form a structure called the histone octamer. octamer to form a nucleosome. The nucleosome is the basic unit of chromatinplugin-autotooltip__default plugin-autotooltip_bigChromatin: the collective structure of all proteins and DNA in the nucleus of a eukaryotic cell. Nucleosomes are stacked in different configurations to form chromatin structures of different density. Chromatin structure is regulated by a variety of chromatin modifying enzymes..