During translation, mRNA is translated into polypeptides by which molecules?

During translation, mRNA is translated into polypeptides by which molecules?

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

Answer: (A)

Translation relies on tRNA to bring the amino acids that will be linked into a growing polypeptide, guided by the codons on the mRNA. Each tRNA molecule carries a specific amino acid and has an anticodon that pairs with the corresponding codon on the mRNA, ensuring the right amino acid is added at each step. The ribosome, assembled largely from rRNA, serves as the site where peptide bonds form, but the actual delivery of amino acids comes from tRNA. The mRNA provides the coding sequence, while DNA polymerase is involved in DNA replication, not translation.

Translation relies on tRNA to bring the amino acids that will be linked into a growing polypeptide, guided by the codons on the mRNA. Each tRNA molecule carries a specific amino acid and has an anticodon that pairs with the corresponding codon on the mRNA, ensuring the right amino acid is added at each step. The ribosome, assembled largely from rRNA, serves as the site where peptide bonds form, but the actual delivery of amino acids comes from tRNA. The mRNA provides the coding sequence, while DNA polymerase is involved in DNA replication, not translation.