describe the structure of nuecleosome
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Nucleosome is the complex of histone protein and DNA.
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the nucleosome core particle contains two copies of each histone protien(H2A,H2B, H3,H4) amd 146 basepairs(bp) of superhelical DNA wrapped around his histone octomer.it represent the first order of dna packaging in the nucleus and as such is the principle structure that determines DNA accessibility.
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