The synthesis of a polypeptide chain or a protein from mRNA is called

Options

A. Transcription
B. Transformation
C. Tranduction
D. Translation

Answer

To solve the question, "The synthesis of a polypeptide chain or a protein from mRNA is called," we will analyze the options provided and identify the correct term associated with this biological process.

### Step-by-Step Solution:

1. **Understanding the Question**: The question is asking for the specific term that describes the process of synthesizing a polypeptide chain or protein from mRNA.

2. **Reviewing the Options**:
- **Transformation**: This term refers to the process where a bacterium takes up foreign DNA from its environment. It is not related to protein synthesis.
- **Transduction**: This is the process by which DNA is transferred from one bacterium to another by a virus. Again, this does not pertain to protein synthesis.
- **Transcription**: This is the process of synthesizing mRNA from a DNA template. While it is an important step in gene expression, it does not involve the synthesis of proteins.
- **Translation**: This is the process where the mRNA is used as a template to synthesize a polypeptide chain or protein. This is the correct term we are looking for.

3. **Identifying the Correct Answer**: Based on the definitions of the terms, the correct answer to the question is **Translation**.

### Final Answer:
The synthesis of a polypeptide chain or a protein from mRNA is called **Translation**.

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