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Answer: 2. The DNA is condensed into a Chromatin Fibre.

Key idea: Histone H1 is the linker histone that seals the nucleosome.

H1 binds the linker DNA where it enters and leaves the nucleosome and pulls nucleosomes together, so the beads-on-a-string fibre folds into a condensed chromatin fibre. Condensation makes DNA less accessible, so replication or transcription is not occurring, and the helix is not exposed. Answer: (2).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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