Amino Acids are Transferred to the Ribosome to Be Incorporated

Question

Amino acids are transferred to the ribosome to be incorporated into a growing polypeptide chain by
A) aRNA.
B) mRNA.
C) rRNA.
D) tRNA.
E) pRNA.

Accepted Answer

Transfer RNA (tRNA) is responsible for transferring amino acids to the ribosome to be added to a growing polypeptide chain. Each tRNA molecule has an anticodon sequence that base pairs with a complementary codon on the mRNA, and the amino acid attached to the tRNA is added to the growing polypeptide chain if the codon-anticodon pairing is correct. Aminoacyl-tRNA synthetases are enzymes that attach the correct amino acid to each tRNA molecule based on the tRNA's anticodon sequence.