27. When examining the genetic code, it is apparent that A. there can be more than one codon for a particular amino acid B. AUG is a terminating codon C. there can be more than one amino acid for a particular codon D. the code is ambiguous in that the same codon can code for two or more amino acids E. there are 44 stop codons because there are only 20 amino acids. 28. The relationship between a gene and a messenger RNA is that A. genes are made from mRNAs. B. all genes are made from mRNAs C. mRNAs make proteins, which then code for genes D. mRNAs are made from genes E. messenger RNA is directly responsible for making Okazaki fragments. 29. Introns are known to contain termination codons (UAA, UGA, or UAG) yet these codons do not interrupt the coding of a particular protein. Why? A. Introns are removed from mRNA before translation. B. Exons are spliced out of mRNA before translation. C. These triplets cause frameshift mutations, but not termination. D. More than one termination codon is needed to stop translation. E. UAA, UGA, and UAG are initiator codons, not termination codons. 30. In a coding experiment using repeating copolymers, the following data were obtained: Copolymer Codons produced Amino acids in polypeptide GA GAG, AGA Glu, Arg GGA GGA, GAG, AGG Gly, Glu, Arg Taking into account the wobble hypothesis and the fact that GAA codes for Glu, what are the codons for the given amino acids? A. GAG = Glu, AGA = Arg, GGA + AGG = Gly B. AGA = Arg, GGA = Gly, GAG + AGG = Glu C. GAG = Glu, GGA = Gly, AGA + AGG = Arg D. GAG = Arg, AGA = Glu, GGA + AGG = Gly E. AGA = Arg, AGG = Gly, GAG + GGA = Glu