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Concept explainers
(a)
Interpretation: We need to comprehend the corresponding section of mRNA which is produced from the given DNA template.
Concept Introduction: The molecule in living cells which carry codes from DNA in the nucleus to the ribosomes, which are the sites of protein synthesis in the cytoplasm are said to be messenger RNA or mRNA.
(b)
Interpretation: The three-letter and one-letter abbreviations for the corresponding peptide segment should be determined.
Concept Introduction: A codon represents the sequence of three DNA or RNA
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Chapter 18 Solutions
EP BASIC CHEMISTRY-STANDALONE ACCESS
- Consider the following DNA base sequence 3TTAATA5 a. What dipeptide is formed from the transcription and translation of this DNA segment? b. What dipeptide is formed if a DNA point mutation converts ATA to ATG? c. What dipeptide is formed if a DNA point mutation converts ATA to AGA? d. What dipeptide is formed if a DNA point mutation converts TTA to TTT?arrow_forwardConsider the following mRNA base sequence 5CUUCAG3 a. What dipeptide is coded for by this mRNA? b. What dipeptide is formed if a point mutation converts CUU to CUC? c. What dipeptide is formed if a point mutation converts CAG to AAG? d. What dipeptide is formed if a point mutation converts CUU to CUC and CAG to AAG?arrow_forwardThe codon UAA stops protein synthesis. Why does the sequence UAA in the following stretch of mRNA not cause any problems?arrow_forward
- The -chain of hemoglobin is a protein that contains 146 amino acids residues. What minimum number of nucleotides must be present in a strand of mRNA that is coded for this protein?arrow_forwardComplete degradation of a protein into individual amino acids involves choose all that are correct: a. Removal of a water molecule from between two amino acids b. Addition of a water molecule between two amino acids c. A hydrolysis reaction d. The breaking of peptide linkagearrow_forwardC) СНО HO-C-OH CH,OH D) ÇOOH H-C-OH CH;OH 39. DNA isolated from human cheek cells was found to contain 20% guanine. What percent of the nucleotides in this DNA would be cytosine? A) 20% В) 30% C) 40% D) 80% 40. Which statement below is true regarding peptide hydrolysis? A) Water is formed. B) The side chains (R groups) are broken from the carbon. C) It requires extra amino acids to serve as catalysts. D) Carboxylic acid and amine groups are formed. 41. The biochemical that is considered insoluble fiber is classified as a A) carbohydrate. B) lipid. C) nucleic acid. D) protein. 42. Which biomolecular component is important for a virus interacting with a host cell? A) DNA B) RNA C) Protein D) Waxarrow_forward
- RNA 1 What nucleic acid is used to transport an amino acid to the site where a protein is being manufactured? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. DNA b. TRNA MRNA TRNA Unanswered lipids 1 Fats and oils are structurally both triacylglycerols, but fats are solids at room temperature and oils are liquids at room temperature Which statement best describes the reason for their difference in physical state?arrow_forwardUAA is a stop codon. Why does the UAA sequence in the segment of mRNA in Problem 9 not cause protein synthesis to stop?arrow_forward
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