Charging (aminoacylation) of tRNA involves the attachment of

Options

A. amino acid to tRNA
B. amino acid to mRNA
C. neutral amino acid to tRNA
D. acidic amino acid to tRNA

Answer

**Step-by-Step Solution:**

1. **Understanding the Process of tRNA Charging (Aminoacylation):**
- The process of charging tRNA, also known as aminoacylation, involves the attachment of an amino acid to a specific tRNA molecule. This is a crucial step in protein synthesis.

2. **Role of mRNA and tRNA:**
- During translation, mRNA carries the genetic information from DNA, and tRNA helps in translating this information into a sequence of amino acids. Each tRNA has an anticodon that pairs with the corresponding codon on the mRNA.

3. **Identifying the Correct Attachment:**
- The question asks about the attachment involved in the charging of tRNA. The correct answer is that an amino acid is attached to the tRNA. This attachment is facilitated by an enzyme called aminoacyl-tRNA synthetase.

4. **Evaluating the Options:**
- Option A: "Amino acid to RNA" - This is correct as it indicates the attachment of an amino acid to tRNA.
- Option B: "Amino acid to mRNA" - This is incorrect because the amino acid does not attach to mRNA.
- Option C: "Neutral Amino Acid to tRNA" - This is also incorrect because any type of amino acid (neutral, acidic, or basic) can be attached to tRNA.

5. **Conclusion:**
- Therefore, the correct answer is that the charging (aminoacylation) of tRNA involves the attachment of an amino acid to tRNA.

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