Role of DNA in the life of an organism:
(1) DNA is known as the master molecule of the organism. It is the vehicle of the heredity and store house of all informations required for the growth, differentiation etc.
(2) This information in deoxyribose nucleic add is contained in the form of blue print.
(3) It gives message to the cell for duplication and transcription. This message is used for protein synthesis by the cells.
(4) Some proteins act as enzymes itself.