DNA is

Options

A. Biomacromolecule
B. acidic in nature
C. polymer of nucleotide
D. all the above

Answer

**Step-by-Step Solution:**

1. **Understanding DNA**: DNA stands for deoxyribonucleic acid. It is a crucial molecule found in all living organisms and is responsible for storing and transmitting genetic information.

2. **Classification as a Bio-Macromolecule**: DNA is classified as a bio-macromolecule because it is a large and complex molecule made up of smaller units called nucleotides. Bio-macromolecules include proteins, carbohydrates, lipids, and nucleic acids.

3. **Acidic Nature**: DNA is acidic in nature due to the presence of phosphate groups in its structure. The phosphate groups contribute to the overall negative charge of the DNA molecule, which is characteristic of acids.

4. **Polymer of Nucleotides**: DNA is a polymer, meaning it is composed of many repeating units. In the case of DNA, these repeating units are nucleotides. Each nucleotide consists of three components: a nitrogenous base, a pentose sugar (deoxyribose in DNA), and a phosphate group.

5. **Conclusion**: Based on the above points, DNA can be classified as:
- A bio-macromolecule
- Acidic in nature
- A polymer of nucleotides

Therefore, the correct answer to the question "DNA is" is "all the above."

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