試題詳解

15. As the polypeptide is elongating during translation, what is the ribosome doing?
(A)removing incorrectly added amino acids
(B) moving along the mRNA transcript bonding amino acids to each other
(C) travelling back and forth between the nucleus and the growing polypeptide with information on which amino acids to add
(D) removing the noncoding introns
(E) breaking hydrogen bonds between the tRNA and the mRNA