DNA is unique in that it has

Options

A. Nitrogen bases
B. Ability to withstand heat
C. Ability to replicate
D. Ability for replication and transcription.

Answer

To answer the question "DNA is unique in that it has," we will analyze the characteristics of DNA and identify what makes it unique.

### Step-by-Step Solution:

1. **Understanding DNA**:
- DNA, or deoxyribonucleic acid, is the hereditary material in all known living organisms and many viruses. It carries genetic information essential for the growth, development, functioning, and reproduction of organisms.

2. **Key Characteristics of DNA**:
- DNA is composed of two strands that coil around each other to form a double helix.
- It contains nitrogenous bases (adenine, thymine, cytosine, and guanine) that pair specifically (A with T and C with G).
- DNA is capable of self-replication, which is crucial for cell division and inheritance.

3. **Unique Features of DNA**:
- The ability to replicate: DNA can make copies of itself, allowing genetic information to be passed on from one generation to the next.
- The ability to undergo transcription: DNA can be transcribed into RNA, which is then translated into proteins, enabling the expression of genes.

4. **Evaluating the Options**:
- The options provided include:
- Nitrogenous bases
- Ability to withstand heat
- Ability to replicate
- Ability for replication or transcription
- Among these, the ability to replicate and the ability for transcription are the most significant unique features of DNA.

5. **Conclusion**:
- Therefore, the correct answer is that DNA is unique in that it has the ability for replication and transcription.

### Final Answer:
DNA is unique in that it has the ability for replication and transcription.