Medical Genetics 2.1 Organization of Human Chromosomes Each human chromosome consists of a single,continuous DNA double helix. The genome is packaged as chromatin,in which genomic DNA is complexed with several classes of chromosomal proteins. Each complex of DNA with core histones is called a nucleosome,which is the basic structural unit of chromatin. This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more informationThis document is produced by trial version of Print2Flash. Visit www.print2flash.com for more information