Which of the following RNAs have clover leaf structure?

Options

A. transfer RNA
B. messenger RNA
C. ribosomal RNA
D. heterogenous RNA

Answer

To determine which RNA has a clover leaf structure, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of RNA**: Familiarize yourself with the different types of RNA. The main types include messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA).

2. **Identify the Clover Leaf Structure**: The term "clover leaf structure" is specifically associated with tRNA. This structure is characterized by its unique folding pattern that resembles a clover leaf.

3. **Know the Models of tRNA**: Recognize that tRNA has two models:
- The **2D model**, which is often referred to as the clover leaf model, was proposed by scientist R. Hawley.
- The **3D model**, which is shaped like an L, was described by scientist Kim.

4. **Conclude the Answer**: Based on the information gathered, we conclude that the RNA with the clover leaf structure is tRNA (transfer RNA).

### Final Answer:
The RNA that has a clover leaf structure is **tRNA (transfer RNA)**.

---