Question:
In its extended 'beads-on-string' form of chromatin, the 'beads' in the string represent:
In its extended 'beads-on-string' form of chromatin, the 'beads' in the string represent:
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Nucleosomes are DNA-histone complexes that form the fundamental repeating unit of chromatin. Each bead is a nucleosome, and the string is linker DNA.
Updated On: Jun 17, 2025
- Linker DNA
- Histone proteins
- Nucleosomes
- NHC proteins
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The Correct Option is C
Solution and Explanation
In the beads-on-string model of chromatin structure, the "beads" represent nucleosomes. Each nucleosome consists of DNA wrapped around a core of histone proteins. The "string" part is the linker DNA, which connects one nucleosome to the next. This structure helps in the packaging of DNA into a compact form within the nucleus.
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