Anticodon occur in :

Options

A. t-RNA
B. m-RNA
C. r-RNA
D. DNA

Answer

To solve the question "Anticodon occurs in:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Anticodon**:
- An anticodon is a sequence of three nucleotides that is complementary to a corresponding codon in mRNA. It plays a crucial role in the process of translation during protein synthesis.

2. **Identify Where Anticodons Are Found**:
- Anticodons are specifically found in transfer RNA (tRNA). Each tRNA molecule carries a specific amino acid and has an anticodon that pairs with the codon on the mRNA strand during translation.

3. **Review Other Options**:
- **mRNA**: Contains codons, not anticodons. Codons are the sequences that are read during translation.
- **rRNA**: Ribosomal RNA is a component of ribosomes and does not contain anticodons.
- **DNA**: Contains sequences that can be transcribed into mRNA but does not have anticodons.

4. **Conclude the Correct Answer**:
- Since anticodons are found in tRNA and not in mRNA, rRNA, or DNA, the correct answer to the question is **tRNA**.

### Final Answer:
- The correct answer is **tRNA**.

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