Question

In a nucleosome, the DNA is wrapped around

• A. polymerase molecules
• B. ribosomes
• C. histones
• D. nucleolus

Answer 1

Answer: (C)

histones

A nucleosome is a basic unit of DNA packaging in eukaryotes, consisting of a segment of a DNA wound in sequence around eight histone protein octamer cores. Nucleosome constitutes the repeating unit of a structure in nucleus called chromatin, thread-like stained (colored) seen in the nucleus. The negatively charged DNA is wrapped around the positively charged histone octamer to form a structure called DNA helix.

So, the correct option is 'histones'.