Which structure in chromatin shows 'beads - on - string' appearance under an electron microscope?

Solenoid

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Nucleosome

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DNA helix

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Chromatin

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Solution

The correct option is B Nucleosome
Nucleosome is made up of DNA wrapped around a core of histone molecules. This appear like a bead on a string when observed under an electron microscope.

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What are the structures called which give an appearance as beads on a string in the chromosomes when viewed under an electron microscope?

What are those structures that appear as 'beads-on-string' in the chromosomes when viewed under an electron microscope?

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