The process of removal intron transcripts and joining of exon transcripts in the hnRNA is called

Options

A. RNA polymerisation
B. RNA splitting
C. RNA splicing
D. RNA translation

Answer

To solve the question, "The process of removal of intron transcripts and joining of exon transcripts in the hnRNA is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Components**:
- **Introns**: Non-coding sequences in the RNA that are removed during RNA processing.
- **Exons**: Coding sequences that remain in the RNA after processing.

2. **Identifying the Process**:
- The question asks about the process that involves the removal of introns and the joining of exons in the hnRNA (heterogeneous nuclear RNA), which is the precursor to mRNA.

3. **Defining the Term**:
- The process of removing introns and joining exons is a crucial step in the maturation of mRNA. This process is known as **splicing**.

4. **Evaluating the Options**:
- Option A: RNA polymerization - This refers to the synthesis of RNA from a DNA template.
- Option B: RNA splitting - This is not a recognized term in molecular biology.
- Option C: RNA splicing - This is the correct term for the process described.
- Option D: RNA translation - This refers to the process of synthesizing proteins from mRNA.

5. **Conclusion**:
- Based on the definitions and the options provided, the correct answer is **Option C: RNA splicing**.

### Final Answer:
The process of removal of intron transcripts and joining of exon transcripts in the hnRNA is called **RNA splicing**.

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