DNA is acidic due to

Options

A. sugars
B. phosphoric acid
C. purines
D. pyrimidiness

Answer

To answer the question "DNA is acidic due to," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding DNA Structure**:
- DNA stands for Deoxyribonucleic Acid. It is composed of three main components: nitrogenous bases, a sugar (deoxyribose), and phosphate groups.

2. **Identifying Components**:
- The nitrogenous bases are divided into two categories: purines (adenine and guanine) and pyrimidines (cytosine and thymine).
- The sugar present in DNA is deoxyribose.

3. **Analyzing Acidity**:
- The term "acidic" refers to the ability of a substance to donate protons (H+ ions) in a solution.
- In the case of DNA, the acidic nature is primarily attributed to the phosphate groups present in the backbone of the DNA structure.

4. **Role of Phosphate Groups**:
- Each phosphate group in DNA can release protons, which contributes to the overall acidity of the molecule.
- The presence of these phosphate groups is what makes DNA acidic.

5. **Conclusion**:
- Therefore, the correct answer to the question "DNA is acidic due to" is **phosphoric acid** (or more specifically, the phosphate groups in the DNA structure).

### Final Answer:
DNA is acidic due to **phosphoric acid**.

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