A) about 2 turns of DNA
B) 8 histone molecules of 4 types (2 mols each of \[{{H}_{2}}\] a,\[{{H}_{2}}\] b, \[{{H}_{3}}\] and\[{{H}_{4}}\])
C) 166 nitrogen basepairs
D) all of the above
Correct Answer: D
Solution :
Nucleosome is 10 nm in diameter, it is an octamer of histone protein and has a core of 8 molecules of histone wrapped by 2 turns of DNA having about 166 base pairs.
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