If a triplet on template DNA is AAA, what will be the anticodon on tRNA

Options

A. UUU
B. AAA
C. TTT
D. AUG

Answer

To solve the question, "If a triplet on template DNA is AAA, what will be the anticodon on tRNA?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Template DNA Triplet**:
- The given triplet on the template DNA is AAA.

2. **Transcribe DNA to mRNA**:
- During transcription, the DNA sequence is used to create a complementary mRNA strand.
- The base pairing rules state that Adenine (A) pairs with Uracil (U) in RNA (instead of Thymine (T) as in DNA).
- Therefore, the triplet AAA on the template DNA will be transcribed to UUU in mRNA.

3. **Determine the Anticodon on tRNA**:
- The tRNA has an anticodon that is complementary to the mRNA codon.
- Since the mRNA codon is UUU, the corresponding tRNA anticodon will be AAA (as A pairs with U and U pairs with A).

4. **Conclusion**:
- The anticodon on tRNA that corresponds to the DNA triplet AAA is AAA.

### Final Answer:
The anticodon on tRNA is AAA.