Final answer:
The statement is true as transfer RNA (tRNA) is responsible for transporting the correct amino acids to the ribosome to incorporate them into the growing polypeptide chain during protein synthesis.
Step-by-step explanation:
The statement that it is the job of transfer RNA (tRNA) to bring the proper amino acid into the ribosome to be attached to the growing peptide chain is true. Transfer RNA plays a crucial role in protein synthesis by serving as the link between the codons in mRNA and the amino acids. Each tRNA molecule has a binding site for an amino acid on one end, and an anticodon on the opposite end, which matches the codon in mRNA. During translation, the tRNA recognizes its corresponding mRNA codon and brings the appropriate amino acid to the ribosome, where the enzyme peptidyl transferase catalyzes the addition of the amino acid to the growing polypeptide chain.