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24/09/2020 1:29 pm
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The given figure shows the structure of nucleosome with their parts labelled as A, B & C. Identify A, B and C.
(a) A – DNA; B – H1 histone; C – Histone octamer
(b) A – H1 histone; B – DNA; C – Histone octamer
(c) A – Histone octamer; B – RNA; C – H1 histone
(d) A – RNA; B – H1 histone; C – Histone octamer
1 Answer
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24/09/2020 1:30 pm
(a) A – DNA; B – H1 histone; C – Histone octamer
Explanation:
Nucleosome is a structural unit of a eukaryotic chromosome which consists of a length of DNA coiled around a core of histones and are thought to be present only during interphase of the cell cycle. In the given figure of nucleosome structure, the parts marked as A, B and C are respectively DNA, H1 histones and histone octamer.