Which set of RNA are involved in protein synthesis.

Options

A. tRNA, mRNA, rRNA
B. tRNA, mRNA, hnRNA
C. hnRNA, mRNA, rRNA
D. hnRNA, tRNA, rRNA

Answer

To answer the question "Which set of RNA are involved in protein synthesis?" we need to identify the types of RNA that play a role in this biological process. Here’s a step-by-step breakdown of the solution:

### Step 1: Understanding the Types of RNA
There are several types of RNA involved in the process of protein synthesis. The main types include:
- **mRNA (messenger RNA)**: This RNA carries the genetic information from DNA to the ribosome, where proteins are synthesized.
- **tRNA (transfer RNA)**: This RNA brings the appropriate amino acids to the ribosome during protein synthesis. It has an anticodon that pairs with the codon on the mRNA.
- **rRNA (ribosomal RNA)**: This RNA forms the core of the ribosome's structure and catalyzes the formation of peptide bonds between amino acids.

### Step 2: Identifying the Role of Each RNA
- **mRNA**: Acts as a template for protein synthesis.
- **tRNA**: Transfers amino acids to the ribosome and matches them to the coded mRNA message.
- **rRNA**: Structural component of ribosomes, facilitating the translation process.

### Step 3: Excluding Non-Involved RNA
- **Heteronuclear RNA (hnRNA)**: This is an immature form of mRNA that undergoes processing to become mature mRNA. It is not directly involved in the synthesis of proteins.

### Conclusion
The set of RNA that are involved in protein synthesis includes:
- **tRNA**
- **mRNA**
- **rRNA**

### Final Answer
The correct answer is: **tRNA, mRNA, and ribosomal RNA (rRNA)**.

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