Which of the following is responsible for the heredity character of cell?

Options

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

Answer

To determine which component is responsible for the hereditary characteristics of a cell, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Heredity**: Heredity refers to the passing of traits or characteristics from parents to their offspring. This process is essential for the continuity of genetic information across generations.

2. **Identifying Key Molecules**: The primary molecules involved in heredity are nucleic acids, specifically DNA (Deoxyribonucleic Acid) and RNA (Ribonucleic Acid). However, only DNA is directly responsible for storing and transmitting genetic information.

3. **Role of DNA**: DNA contains the genetic blueprint that dictates the development, functioning, growth, and reproduction of all living organisms. It carries the instructions for making proteins, which are crucial for the structure and function of cells.

4. **Excluding Other Options**:
- **RNA**: While RNA plays a role in protein synthesis and can carry genetic information in some viruses, it is not the primary molecule responsible for heredity in most organisms.
- **Hormones**: Hormones are signaling molecules that regulate physiological processes but do not carry genetic information.
- **Proteins**: Proteins are the products of gene expression and perform various functions in the cell, but they do not carry hereditary information themselves.

5. **Conclusion**: Based on the understanding that DNA is the molecule that carries and transmits hereditary information, we can conclude that DNA is responsible for the hereditary character of the cell.

### Final Answer:
**DNA (Deoxyribonucleic Acid) is responsible for the hereditary character of the cell.**

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