Clover leaf model of holley for tRNA is a 2D model giving secondary structure. A 3D model showing tertiary structure was

Options

A. L-form model of Klug
B. Nucleosome model of kornberg
C. Du praw unineme model
D. no such model exists

Answer

To answer the question regarding the 3D model showing the tertiary structure of tRNA, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding tRNA Structure**:
- tRNA (transfer RNA) is crucial in protein synthesis as it carries amino acids to the ribosome, where proteins are synthesized.
- The primary structure of tRNA is a linear sequence of nucleotides, but it folds into a specific shape.

2. **2D Cloverleaf Model**:
- The cloverleaf model, proposed by Holley, represents the secondary structure of tRNA.
- In this model, tRNA appears as a cloverleaf due to the formation of base pairs between complementary nucleotides, creating loops and stems.

3. **3D Tertiary Structure**:
- The tertiary structure of tRNA is more complex than the secondary structure.
- It is often represented as an L-shaped molecule, which is crucial for its function in translation.

4. **Identifying the 3D Model**:
- The question asks for the 3D model of tRNA. The correct answer is the **L-shaped model proposed by Kluge**.
- This model illustrates how the tRNA folds into a three-dimensional structure that allows it to interact effectively with mRNA and ribosomes during protein synthesis.

5. **Conclusion**:
- Therefore, the answer to the question is that the 3D model showing the tertiary structure of tRNA is the **L-shaped model of Kluge**.

### Final Answer:
The 3D model showing the tertiary structure of tRNA is the **L-shaped model of Kluge**.

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