What is the three-base sequence on the tRNA that pairs with a codon called?

What is the three-base sequence on the tRNA that pairs with a codon called?

• A. Codon
• B. Anti-codon
• C. Intron
• D. Exon

Answer: (B)

In translation, the three-base sequence on tRNA that pairs with the codon on mRNA is called the anticodon. It is complementary to the codon and pairs in antiparallel orientation (A pairs with U, G with C), ensuring the correct amino acid is incorporated into the growing protein. The anticodon-tRNA pairing guides the ribosome to read the mRNA codon accurately and bring in the right amino acid via the matching tRNA. The other terms refer to different concepts: a codon is the three bases on mRNA, and introns and exons relate to gene structure, not this tRNA–mRNA interaction.

In translation, the three-base sequence on tRNA that pairs with the codon on mRNA is called the anticodon. It is complementary to the codon and pairs in antiparallel orientation (A pairs with U, G with C), ensuring the correct amino acid is incorporated into the growing protein. The anticodon-tRNA pairing guides the ribosome to read the mRNA codon accurately and bring in the right amino acid via the matching tRNA. The other terms refer to different concepts: a codon is the three bases on mRNA, and introns and exons relate to gene structure, not this tRNA–mRNA interaction.