Which RNA type is primarily involved in reading the codons of mRNA during translation?

Which RNA type is primarily involved in reading the codons of mRNA during translation?

• A. Messenger RNA
• B. Ribosomal RNA
• C. Transfer RNA
• D. DNA

Answer: (C)

During translation, the decoding of the genetic message is carried out by transfer RNA. Each tRNA carries a specific amino acid and has an anticodon that base-pairs with its complementary codon on the mRNA. As the ribosome moves along the mRNA, tRNAs align with the codons, delivering the correct amino acids in order, which are then linked to form a polypeptide. The ribosome, aided by ribosomal RNA, provides the site of catalysis and ensures proper alignment, but the actual recognition of codons comes from the tRNA anticodon pairing. Messenger RNA supplies the template, and DNA remains the original information store, not directly involved in the decoding step during translation.

During translation, the decoding of the genetic message is carried out by transfer RNA. Each tRNA carries a specific amino acid and has an anticodon that base-pairs with its complementary codon on the mRNA. As the ribosome moves along the mRNA, tRNAs align with the codons, delivering the correct amino acids in order, which are then linked to form a polypeptide. The ribosome, aided by ribosomal RNA, provides the site of catalysis and ensures proper alignment, but the actual recognition of codons comes from the tRNA anticodon pairing. Messenger RNA supplies the template, and DNA remains the original information store, not directly involved in the decoding step during translation.