Question

Chromosomes are made up of

• A. DNA only
• B. Protein only
• C. DNA and Protein
• D. RNA only

Answer 1

The correct option is C

DNA and Protein

The correct option is C.

Explanation of the correct option:

1. Chromosomes are strung together like threads.
2. A single molecule of deoxyribonucleic acid and a protein make up each chromosome (DNA).
3. As bundles of DNA that are tightly wound, chromosomes are found inside the nucleus of practically all of the cells in our body.
4. Histone-like proteins, which give chromosomes their distinctive shape, keep DNA securely wound around them.

Final answer: Chromosomes are made up of both DNA and proteins.