<prompt> What is the role of H2 histone?Stabilize the 30-nm chromatin fiberCentral role in the formation of the nucleosomeStabilizes the primary paicleFirmly binds two additional half-turns of DNA  <response>: Types Function H1 histones Stabilize the 30-nm chromatin fiber H2 histones H2A-H2B dimers stabilize the primary paicle and firmly bind two additional half-turns of DNA H3 histones H4 histones H3-H42 tetramer has a central role in the formation of the nucleosome Reference: Harpers illustrated biochemistry 30th edition 