試題詳解

34. Which of the following is not true?
(A) A single activating enzyme can interact with all the tRNAs for its corresponding amino acid
(B) The selectivity of the aminoacyl-tRNA synthetases for their tRNA molecules is ofien called the second genetic code
(C) There are two major classes of aminoacyl-tRNA synthetases
(D) aminoacyl-tRNA synthetases link amino acids to tRNA molecules without the need for an energy source