write function of DNA
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Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information
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DNA was isolated and discovered chemically before its functions became clear. DNA and its related molecule, ribonucleic acid (RNA), were initially identified simply as acidic molecules that were present in the nucleus. When Mendel’s experiments on genetics were rediscovered, it became clear that heredity was probably transmitted through discrete particles, and that there was a biochemical basis for inheritance. A series of experiments demonstrated that among the four types of macromolecules within the cell (carbohydrates, lipids, proteins and nucleic acids), the only chemicals that were consistently transmitted from one generation to the next were nucleic acids.
As it became clear that DNA was the material that was transferred from one generation to the next, its functions began to be investigated.