Movement of ribosome on mRNA is called

Options

A. Transcription
B. Translation
C. Translocation
D. Protein synthesis

Answer

### Step-by-Step Solution

1. **Understanding the Question**: The question asks about the specific term that describes the movement of ribosomes along mRNA during protein synthesis.

2. **Identifying Key Processes**: The options provided are transcription, translation, translocation, and protein synthesis. It is essential to understand what each term means:
- **Transcription**: This is the process where DNA is converted into RNA. It occurs in the nucleus and results in the formation of messenger RNA (mRNA).
- **Translation**: This is the process where the mRNA is used as a template to synthesize proteins. It occurs in the cytoplasm and involves ribosomes.
- **Translocation**: This refers to the movement of the ribosome along the mRNA during the translation process.
- **Protein Synthesis**: This is the overall process that includes both transcription and translation.

3. **Analyzing the Movement of Ribosomes**: The ribosome moves along the mRNA during the translation process. This movement is specifically termed "translocation."

4. **Conclusion**: Therefore, the movement of ribosomes on mRNA is called **translocation**.

### Final Answer
The movement of ribosome on mRNA is called **translocation**.

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