Which of the following RNA play structural and catalytic role during translation

Options

A. m-RNA
B. t-RNA
C. r-RNA
D. All

Answer

To solve the question regarding which RNA plays a structural and catalytic role during translation, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Translation**:
- Translation is the process of protein synthesis where the information encoded in mRNA is used to assemble amino acids into a polypeptide chain.

2. **Identifying the Types of RNA Involved**:
- There are three main types of RNA involved in translation:
- **mRNA (messenger RNA)**: Carries the genetic information from DNA to the ribosome.
- **tRNA (transfer RNA)**: Brings the appropriate amino acids to the ribosome during protein synthesis.
- **rRNA (ribosomal RNA)**: Forms the core of the ribosome's structure and catalyzes peptide bond formation.

3. **Analyzing the Roles of Each RNA**:
- **mRNA**: Primarily serves as a template for protein synthesis but does not have a catalytic role.
- **tRNA**: Plays a crucial role in bringing amino acids to the ribosome and has a structural role in the ribosome. It also participates in the formation of peptide bonds, which is a catalytic function.
- **rRNA**: Provides structural support to the ribosome and is involved in the catalytic activity of forming peptide bonds.

4. **Conclusion**:
- Both **tRNA** and **rRNA** play structural and catalytic roles during translation. However, the question specifically asks for RNA that plays both roles. The most significant one that directly facilitates the translation process is **tRNA**.

5. **Final Answer**:
- The RNA that plays a structural and catalytic role during translation is **tRNA**.