each nucleosomes contains of
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The nucleosome core particle consists of approximately 146 base pairs (bp) of DNA wrapped in 1.67 left-handed superhelical turns around a histone octamer consisting of 2 copies each of the core histones H2A, H2B, H3, and H4.
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Nucleosome. Nucleosomes are the repeated primary units of chromatin and are composed of two copies of each of the four core histones (H2A and H2B, H3, and H4), around which 147 base pairs of DNA are wrapped.
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