Which of the following is responsible for the transmission of genetic information?

Options

A. DNA
B. RNA
C. Proteins
D. Mitrochondria

Answer

To answer the question "Which of the following is responsible for the transmission of genetic information?", we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding Genetic Information**: Genetic information refers to the hereditary information that is passed from parents to offspring. This information dictates the traits and characteristics of an organism.

2. **Identifying Genetic Material**: The primary molecules responsible for storing and transmitting genetic information are nucleic acids. The two main types of nucleic acids are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

3. **Role of DNA**: DNA is the main genetic material in most organisms. It carries the instructions needed for an organism's growth, development, functioning, and reproduction. DNA is located in the nucleus of eukaryotic cells.

4. **Examining the Options**: The options provided are:
- A) DNA
- B) RNA
- C) Proteins
- D) Mitochondria

5. **Evaluating Each Option**:
- **DNA**: As mentioned, DNA is responsible for the transmission of genetic information.
- **RNA**: While RNA plays a role in protein synthesis and can carry genetic information in some viruses, it is not the primary carrier of genetic information in most organisms.
- **Proteins**: Proteins are essential for various cellular functions but do not carry genetic information.
- **Mitochondria**: Mitochondria are organelles that produce energy for the cell and contain some DNA, but they are not primarily responsible for the transmission of genetic information.

6. **Conclusion**: Based on the analysis, the correct answer is **A) DNA**, as it is the molecule that is primarily responsible for the transmission of genetic information.

### Final Answer:
**A) DNA**