Where is the anticodon located?

Where is the anticodon located?

• A. On DNA
• B. On tRNA
• C. On mRNA
• D. On rRNA

Answer: (B)

The anticodon is a three-nucleotide sequence on transfer RNA that pairs with a complementary codon on mRNA during translation. It sits in the anticodon loop of the tRNA molecule, protruding so it can interact with the codon inside the ribosome and ensure the correct amino acid is added to the growing chain. This location makes sense because tRNA’s job is to deliver specific amino acids, and the anticodon is the key feature that recognizes the mRNA codon. It isn’t on DNA, since DNA serves as the transcription template, nor on mRNA (which carries codons, not anticodons), nor on rRNA (which forms part of the ribosome).

The anticodon is a three-nucleotide sequence on transfer RNA that pairs with a complementary codon on mRNA during translation. It sits in the anticodon loop of the tRNA molecule, protruding so it can interact with the codon inside the ribosome and ensure the correct amino acid is added to the growing chain. This location makes sense because tRNA’s job is to deliver specific amino acids, and the anticodon is the key feature that recognizes the mRNA codon. It isn’t on DNA, since DNA serves as the transcription template, nor on mRNA (which carries codons, not anticodons), nor on rRNA (which forms part of the ribosome).