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प्रश्न
How much DNA is wrapped around the histone octamer in a nucleosome?
विकल्प
Approximately 246 base pairs in 3 turns
Approximately 146 base pairs in 1.65 turns
Approximately 90 base pairs in 1 turn
Approximately 200 base pairs in 2 turns
MCQ
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उत्तर
Approximately 146 base pairs of DNA wrap around the histone octamer in 1.65 turns to form the nucleosome core. Together with the linker DNA (20–90 base pairs) between nucleosomes, the total DNA per nucleosome unit is approximately 200 base pairs, and the resulting nucleosome fibre has a diameter of approximately 10 nanometres.
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