試題詳解

19. Which of the following statements regarding the genetic codon are     CORRECT    ?
(A) Genetic codons are composed of nucleotide triplets.
(B) 61 of the 64 possible nucleotide triplets (codons) code for 20 amino acids.
(C) 3 codons do not represent amino acids and cause termination.
(D) "Wobble hypothesis" states that the pairing between codon and anticodon at the first codon position always follows the usual base-pairing rules, but the exceptional wobbles occur at the second and third codon positions.
(E) Protein synthesis (translation) is fulfilled through the recognition of the codon of mRNA by the anti-codon of tRNA attached with a specific amino acid.