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Assertion : DNA is associated with proteins. Reason : DNA binds around histone proteins that form a pool and the entire structure is called a nucleosome.A. If both the asseration and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and rreason are true but the reason not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If the assertion is false but reason is true |
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Answer» Correct Answer - A (a) A chain of DNA has 140 basse pairs, make `1(3)/(4)` turns and twist around a histone octamer forming nucleosome. The core of nucleosome consists of 4 histones `H_(2)A,H_(2)B,H_(3)` and `H_(4)`. |
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