In a charged transfer RNA, the nucleotide bound to the amino acid is adenosine (A) and the next two nucleotides are cytosines (C). What can you tell about the DNA codon to which this transfer RNA corresponds?

Options

A. The codon is TGG
B. The codon is ACC
C. The first position is A, but you can't tell about the other from the information given
D. You can't tell anything about the codon from the information given.

Answer

To determine the DNA codon corresponding to the charged transfer RNA (tRNA) with the sequence of nucleotides given, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of tRNA**:
- tRNA molecules have an amino acid attached to one end and an anticodon on the other end. The anticodon is a sequence of three nucleotides that is complementary to the codon on the mRNA.

2. **Identifying the Sequence of the tRNA**:
- According to the question, the nucleotide bound to the amino acid is adenosine (A), followed by two cytosines (C). Thus, the sequence of nucleotides on the tRNA is A-C-C.

3. **Determining the Anticodon**:
- The sequence A-C-C on the tRNA is the anticodon that pairs with the mRNA codon. The codon on the mRNA would be complementary to the anticodon.

4. **Finding the Complementary Codon**:
- The complementary bases are:
- Adenosine (A) pairs with Uracil (U) in RNA.
- Cytosine (C) pairs with Guanine (G).
- Therefore, the anticodon A-C-C corresponds to the mRNA codon U-G-G.

5. **Translating the mRNA Codon to DNA Codon**:
- The mRNA codon U-G-G can be translated back to the DNA codon. In DNA, Uracil (U) is replaced by Thymine (T).
- Thus, the DNA codon corresponding to the mRNA codon U-G-G is T-G-G.

6. **Conclusion**:
- The question asks what can be inferred about the DNA codon corresponding to the charged tRNA. Since we have determined that the mRNA codon is U-G-G, the DNA codon is T-G-G. However, the options provided in the question do not include T-G-G, and since we cannot definitively determine the codon from the given information, the correct answer is that we cannot tell anything about the codon from the information given.

### Final Answer:
- The correct answer is: **You cannot tell anything about the codon from the information given.**