Question

Choose the correct answer from each of the four options given below:

Chromatin is formed of

• A. Histone only
• B. DNA only
• C. RNA only
• D. DNA and histone

Answer 1

The correct option is D

DNA and histone

The correct option is D.

Explanation of the correct option:

1. Chromatin is the threadlike structure present inside the nucleus of all eukaryotic cells.
2. During cell division, chromatin is condensed to form chromosomes.
3. Chromatin fiber is composed of two substances: DNA and histone proteins.
4. DNA comprises 40% of the chromatin while histone proteins comprise 60% of the chromatin.
5. DNA is wrapped around the histone proteins to form nucleosomes.

Final answer: Hence, chromatin is made of both DNA and histone.