Q. Chromosomes are made up of
(1) DNA only
(2) protein only
(3) DNA and protein
(4) RNA only
The correct answer for this question is option 3 i.e. DNA and protein.
- Chromosomes are a thread-like structure and each chromosome is composed of proteins and a single molecule of DNA (deoxyribonucleic acid)
- Chromosomes are referred to as bundles of tightly coiled DNA that are located within the nucleus of the cells in the body of a human being
- It is the unique structure of chromosomes that keeps DNA tightly wrapped around histones, spool-like proteins
- The DNA is protected from getting tangled and damaged by chromosomes
- Each chromosome consists of thousands of genes that code for multiple proteins in the body of the human being
- The main function of the chromosomes, made up of proteins and DNA, is to carry the genetic material from one generation to the other