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Chromatosome
A chromatosome is when histone H1 binds to a nucleosome, which contains a histone octamer and DNA. The chromatosome contains 166 base pairs of DNA. 146 base pairs are from the DNA wrapped around the histone core of the nucleosome. The remaining 20 base pairs are from the DNA of histone H1 binding to the nucleosome. Histone H1, and its other variants, are referred to as linker histones. Protruding from the linker histone, are linker DNA. Chromatosomes are connected to each other when the linker DNA, of one chromatosome, binds to the linker histone of another chromatosome. Human genes are made up of thousands to millions of base pairs. A lot of chromatosomes are required to make up a single gene, and even more to make up the entire genome.