It is easy to remove DNA histone complex with

1M NaCl

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NaCl + Mg(OH)

_{2}

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Mg(OH)

_{2}

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Cannot be pulled by chemicals.

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Solution

The correct option is A 1M NaCl
Since histones are positively charged & DNA is negatively charged, this complex can be removed by 1M NaCl, it helps in rapidly dissociating the complex into DNA and histone.
So, the correct answer is "1M NaCl".

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