Anticodons are found in

Options

A. t-RNA
B. r-RNA
C. m-RNA
D. all of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Anticodons**: Anticodons are sequences of three nucleotides that are complementary to codons found on mRNA. Each anticodon corresponds to a specific codon that codes for an amino acid.

2. **Complementarity**: The concept of complementarity means that the bases of the anticodon pair with the bases of the codon. For example, if the codon on mRNA is AUG, the corresponding anticodon would be UAC.

3. **Function of Anticodons**: The primary function of anticodons is to ensure that the correct amino acid is added during protein synthesis. They help in translating the genetic code carried by mRNA into a polypeptide chain (protein).

4. **Role in Translation**: Anticodons play a crucial role in the process of translation, where the information from mRNA is used to synthesize proteins. The anticodon on tRNA pairs with the codon on mRNA, allowing the correct amino acid to be brought to the growing polypeptide chain.

5. **Identifying the Correct Answer**:
- **Option 1: tRNA** - This is the correct answer because anticodons are found in tRNA (transfer RNA).
- **Option 2: rRNA** - This option is incorrect. rRNA (ribosomal RNA) is part of the ribosome and does not contain anticodons.
- **Option 3: mRNA** - This option is also incorrect. mRNA (messenger RNA) carries the codons but does not contain anticodons.

6. **Conclusion**: Based on the analysis, the correct answer is that anticodons are found in tRNA.

**Final Answer**: Anticodons are found in tRNA.

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