Question

Which enzyme is responsible for activating amino acids and attaching them to the correct tRNA?

Options

• Aminoacyl-tRNA synthetase

• RNA polymerase

• Peptidyl transferase

• DNA polymerase

Answer 1

Aminoacyl-tRNA synthetase is the enzyme responsible for activating amino acids and attaching them to the correct tRNA molecule. This enzyme catalyzes the formation of an ester bond between the amino acid and the adenosine nucleotide at the 3' end of tRNA, a process that requires ATP hydrolysis. Each aminoacyl-tRNA synthetase is specific for a particular amino acid and its corresponding tRNA.