Chromosomes are made up of (1) DNA only (2) Protein only (3) DNA and prottein (4) RNA only

Answer: (3)

Chromosomes are thread-like structures woven together. Each chromosome is made of proteins and a single molecule of deoxyribonucleic acid (DNA). Chromosomes have been defined as bundles of tightly coiled DNA located within the nucleus of almost every cell in our body. This unique structure of chromosome keeps DNA tightly wrapped around spool-like proteins, named histones.

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