6. Which of the following statements about the genetic code is incorrect? (A) The genetic code is a set of three-base code words, or codons, in mRNA. (B) The codons instruct the ribosome to incorporate specific amino acids into a polypeptide. (C) The code is nonoverlapping: that is, each base is part of only one codon. (D) There are total of 63 codons. Three are stop signals, and the rest code for amino acids. (E) The same aminoacyl-tRNA is allowed to pair with more than one codon.