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The nucleosome model explains the packaging of histone proteins and DNA in the chromatin material which forms the chromosome.

1. Nucleosome is made of RNA and histone proteins.
2. Nucleosome is made of DNA and histone proteins.
3. Nucleosome is made of lipids and histone proteins.
4. Nucleosome is made of carbohydrates and histone proteins.

Correct answer: Nucleosome is made of DNA and histone proteins.

Solution

A nucleosome is the fundamental unit of chromatin, consisting of DNA wound around histone proteins. This arrangement helps compact DNA into chromosomes.

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