Read the following statements and choose the set of correct statements: I. Euchromatin is loosel...

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Read the following statements and choose the set of correct statements:
I. Euchromatin is loosely packed chromatin.
II. Heterochromatin is transcriptionally active.
III. Histone octomer is wrapped by negatively charged DNA in nucleosome.
IV. Histones are rich in lysine and arginine.
V. A typical nucleosome contains \( 400 \mathrm{bp} \) of DNA helix.
(1) I, III, V Only
(2) II, IV, V Only
(3) I, III, IV Only
(4) II, V Only
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