14) A tRNA that has an amino acid attached is called A) an rRNA B) a degenerate tRNA C) a coding tRNA D) a charged tRNA E) None of the answers are correct Answer: 15) What is true according to the adaptor hypothesis? A) The anticodon and amino acid have no relationship. B) A given tRNA can carry any of the twenty amino acids. C) The position of an amino acid within a polypeptide is determined by the binding of mRNA with a tRNA carrying a specific amino acid. D) An amino acid recognizes the codon in mRNA. Answer: 16) The peptidyl transferase is a component of A) DNA. B) tRNA. C) the ribosome. D) the protein being translated. E) mRNA. Answer: 17) A protein called actin consists of 376 amino acids. The mRNA for actin must be longer than A) 125 nucleotides. B) 376 nucleotides. C) 1128 nucleotides. D) 3384 nucleotides. Answer: 18) What is true according to the adaptor hypothesis? A) The anticodon and amino acid have no relationship. B) A given tRNA can carry any of the twenty amino acids. C) The position of an amino acid within a polypeptide is determined by the binding of mRNA with a tRNA carrying a specific amino acid. D) An amino acid recognizes the codon in mRNA. Answer: 19) A ribozyme is A) a complex between RNA and a protein. B) an RNA that encodes a protein that functions as an enzyme. C) an RNA molecule with a catalytic function. D) a protein that degrades RNA molecules. Answer: