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Question
What do the 'beads on strings' structure of DNA packaging represent?
Options
euchromatin region
nucleosome
histone octamer only
Heterochromatin regions
MCQ
Solution
nucleosome
Explanation:
A segment of DNA is wrapped in sequence around eight histone protein cores to form the basic unit of DNA packaging that makes up the nucleosome. The 'beads on string' structure is another name for this.
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