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- 1. If a different point mutation changed the DNA code from ACG to ACT, would that cause a problem with the resulting polypeptide chain? Explain your answer1. Which of the following rules apply to the synthesis of nucleic acids? A. Nucleotides are added to the 5' end of nucleic acids. B. Complementary pairing between bases is required for copying nucleic acids. C. The synthesis of nucleic acids cannot occur without the presence of an enzyme to catalyze the reaction. D. Strands are synthesized in a parallel direction such that one end of the double-stranded product has the 3' ends and other has the 5' ends. 2. Why does it take three turns of the Calvin cycle to produce G3P, the initial product of photosynthesis? A. To produce RuBisCo as an end product. B. To fix enough oxygen to export one G3P molecule. C. To fix enough carbon to export one G3P molecule. D. To produce ATP and NADPH for fixation of G3P. 3. For protein synthesis, an amino acid needs to be attached by its _ group to the _ of the tRNA molecule. A. A. Amino; phosphoryl group on the 5'-end. B. Carboxyl; hydroxyl group on the 3'-end. C. Carboxyl; hydroxyl group on the 5'-end. D.…3. Explain how water activity and pH can affect the susceptibility of proteins to denaturation by heat.
- 7. A segment of a DNA strand consists of ...GCTTAGACCTGA.... (a) Identify the expected nucleotide order in the complementary mRNA (b) Identify the sequence of amino acids coded for by this segment of DNA. (c) Describe the bond that forms during translation to link amino acids together. Identify the functional groups that react and the atoms involved.4. Indicate whether each of the following words orphrases applies to proteins, DNA, or both.a. a macromolecule composed of a string of subunitsb. double-strandedc. four different subunitsd. 20 different subunitse. composed of amino acidsf. composed of nucleotidesg. contains a code used to generate othermacromoleculesh. performs chemical reactions1. What determines the affinity of a glycan for a GBP?