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To initiate translation, the mRNA first ...

To initiate translation, the mRNA first binds to

A

the smallar ribosomal sub-unit

B

the larger ribosomal sub-unit

C

the whole ribosome

D

No such specificity exists

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Translation**: Translation is the process where the information encoded in mRNA is used to synthesize proteins. It is a crucial step in gene expression. 2. **Role of Ribosomes**: Ribosomes are the cellular machinery responsible for translation. They are composed of ribosomal RNA (rRNA) and proteins. 3. **Structure of Ribosomes**: Ribosomes consist of two subunits: a large subunit and a small subunit. These subunits come together during the process of translation. 4. **Initiation of Translation**: The initiation of translation begins when the mRNA binds to the ribosome. Specifically, the smaller ribosomal subunit binds to the mRNA first. 5. **Binding Process**: When the small ribosomal subunit encounters the mRNA, it recognizes the start codon (AUG) on the mRNA, which signals the beginning of translation. 6. **Conclusion**: Therefore, to initiate translation, the mRNA first binds to the small ribosomal subunit. **Final Answer**: The mRNA first binds to the small ribosomal subunit to initiate translation. ---
**Step-by-Step Solution:** 1. **Understanding Translation**: Translation is the process where the information encoded in mRNA is used to synthesize proteins. It is a crucial step in gene expression. 2. **Role of Ribosomes**: Ribosomes are the cellular machinery responsible for translation. They are composed of ribosomal RNA (rRNA) and proteins. 3. **Structure of Ribosomes**: Ribosomes consist of two subunits: a large subunit and a small subunit. These subunits come together during the process of translation. ...
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