How are histones reated to nucleosomes?
A nucleosome is a complex made of 8 histones (2 each of H2a, H2b, H3 and H4) with DNA wrapped around it approximately twice. Histone 1 probably serves to help stabilize the further wrapping of the nucleosomes into a solenoid. All of this helps to get 6 feet of DNA in a cell much less than a millimeter across.