Which of the following statements is correct regarding tRNA synthetase?

• A. tRNA synthetases form peptide bonds between amino acids and tRNA molecules during translation.
• B. tRNA synthetases do not translocate tRNA molecules but rather attach the appropriate amino acid to the tRNA.
• C. tRNA synthetases are directly involved in DNA replication or repair.
• D. tRNA synthetases ensure the correct amino acid is attached to the tRNA.

Answer: (D)