A nucleosome is a portion of the chromonema c | vedclass

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$(A)$ nucleosome is the fundamental structural unit of chromatin. It consists of a segment of $DNA$ wrapped around a core of histone proteins. The cor

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both $DNA$ and histones

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$(A)$ nucleosome is the fundamental structural unit of chromatin. It consists of a segment of $DNA$ wrapped around a core of histone proteins. The core particle is composed of an octamer of histone proteins $(H2A, H2B, H3, 	ext{ and } H4)$, around which approximately $146$ base pairs of $DNA$ are coiled. Therefore, a nucleosome contains both $DNA$ and histones.

$A$ nucleosome is a portion of the chromonema containing . . . . . .

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