The first amino acid added by the tRNA is added to the anticodon

Options

A. AUG
B. UAC
C. ACG
D. UGC

Answer

To solve the question regarding the first amino acid added by the tRNA and its corresponding anticodon, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Start Codon**:
- The first amino acid added during protein synthesis is determined by the start codon on the mRNA. The start codon is **AUG**, which codes for the amino acid **Methionine**.

2. **Determine the Corresponding tRNA Anticodon**:
- The tRNA molecule has an anticodon that is complementary to the mRNA codon. For the codon **AUG**, the complementary anticodon on the tRNA would be determined by pairing the bases:
- A (Adenine) pairs with U (Uracil)
- U (Uracil) pairs with A (Adenine)
- G (Guanine) pairs with C (Cytosine)
- Therefore, the anticodon for AUG is **UAC**.

3. **Identify the Amino Acid Associated with the Anticodon**:
- The anticodon **UAC** corresponds to the amino acid **Tyrosine**.

4. **Final Answer**:
- The first amino acid added by the tRNA, which is associated with the anticodon UAC, is **Tyrosine**.

### Conclusion:
- The correct answer to the question is that the first amino acid added by the tRNA is associated with the anticodon **UAC**, which corresponds to **Tyrosine**.