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प्रश्न
Which of the following are core histones that form part of the histone octamer?
विकल्प
H2A, H2B, H3, and H4
H2A, H2B, H3, and H5
H1, H2A, H2B, and H3
H1, H3, H4, and H5
MCQ
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उत्तर
The histone octamer consists of eight core histone molecules: two copies each of H2A, H2B, H3, and H4. These four core histone types form the protein core around which 146 base pairs of DNA wrap 1.65 turns to form the nucleosome. H1 is a linker histone not part of the octamer itself.
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