Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 21.7, Problem 5P
Why do both thymine and uracil specify the incorporation of adenine?
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Chapter 21 Solutions
Essential Organic Chemistry (3rd Edition)
Ch. 21.1 - Draw the structure for each of the following: a....Ch. 21.3 - If one of the strands of DNA has the following...Ch. 21.4 - The 2,3-cyclic phosphodiester that is formed...Ch. 21.5 - Using a dark line for the original parental DNA...Ch. 21.7 - Why do both thymine and uracil specify the...Ch. 21.9 - If methionine is always the first amino acid...Ch. 21.9 - Four Cs occur in a row in the segment of mRNA...Ch. 21.9 - UAA is a stop codon. Why does the UAA sequence in...Ch. 21.9 - A change in which base of a codon would be least...Ch. 21.9 - Write the sequences of bases in the sense strand...
Ch. 21.9 - List the possible codons on mRNA that specify each...Ch. 21.10 - Adenine can be deaminated to hypoxanthine, and...Ch. 21.10 - Explain why thymine cannot be deaminated.Ch. 21.12 - Which of the following base sequences would most...Ch. 21 - Draw structures for the following: a....Ch. 21 - What nonapeptide is coded for by the following...Ch. 21 - What is the sequence of bases in the template...Ch. 21 - What is the sequence of bases in the sense strand...Ch. 21 - What would be the C-terminal amino acid if the...Ch. 21 - What would be the base sequence of the segment of...Ch. 21 - Propose a mechanism for the following reaction:Ch. 21 - A segment of DNA has 18 base pairs. It has 7...Ch. 21 - Match the codon with the anticodon: Codon: AAA GCA...Ch. 21 - Using the single-letter abbreviations for the...Ch. 21 - Indicate whether each functional group of the five...Ch. 21 - Using the A and D designations in Problem 25,...Ch. 21 - Which of the following pairs of dinucleotides are...Ch. 21 - If an mRNA contained only U and G in random...Ch. 21 - Why is the codon a triplet rather than a doublet...Ch. 21 - Human immunodeficiency virus (HIV) is the...Ch. 21 - The amino acid sequences of peptide fragments...Ch. 21 - Which cytosine in the following sense strand of...Ch. 21 - Prob. 33PCh. 21 - Why does DNA not unravel completely before...Ch. 21 - The first amino acid incorporated into a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Nucleotides containing ribose, thymine, and phosphate are not found in ribonucleic acids. Explain why this is the case.arrow_forwardPredict the sequence of amino acids coded by the mRNA sequence 5AUGAAAGAAGACCUA3arrow_forwardThe -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_forward
- Why are Guanidins and Amidins such strong bases?arrow_forwardDraw the structure of each of the following: a. a purine base b. a nucleoside that contains 2-deoxyribose and a pyrimidine base c. a nucleotide that contains ribose and a purine base d. a triphosphate of guanosinearrow_forwardDraw the structure with hydrogen bonds between uracil and adeninearrow_forward
- If 27% of the nucleotides in a sample of DNA contain the base adenine (A), what are the percentages of bases T, G, and C?arrow_forwardDraw a schematic of the Ribosome beginning to synthesise a protein. In your diagram label thefollowing: mRNA, the growing protein, an example of tRNA, a codon/anti-codon pair.arrow_forwardDraw the GPNA molecule and identify the phenylalanine portionarrow_forward
- if the RNA molecule is 40 residues long and all four bases can be at any reidue, then the total number of RNA molecules 4^40. show complete calculations, including unitsarrow_forward(i) A segment of DNA containing 20 base pairs includes 7 guanine residues. How many adenine residues are in the segment? How many uracil residues are in the segment??arrow_forwardHow many equivalence points will dipeptide alanylhistidine have?arrow_forward
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Nucleic acids - DNA and RNA structure; Author: MEDSimplified;https://www.youtube.com/watch?v=0lZRAShqft0;License: Standard YouTube License, CC-BY