Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 21.4, Problem 3P
The 2’,3’-cyclic phosphodiester that is formed (Figure 21.7) when RNA is cleaved reacts with water, forming a mixture of
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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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- 22-93 What charges are on aspartic acid at pH 2.0?arrow_forwardSuppose that 30% of the nucleotides in a DNA molecule are deoxyguanosine 5'- monophosphate, and that during DNA replication the percentage amounts of available nucleotide bases are 20% A, 20% C. 30% G. and 30% T. Which base would be depleted first in the replication process?arrow_forward22-42 (a) How many atoms of the peptide bond lie in the same plane? (b) Which atoms are they?arrow_forward
- 22-20 Show how alanine, in solution at its isoelectric point, acts as a buffer (write equations to show why the pH does not change much if we add an acid or a base).arrow_forwardDraw a structural formula of the DNA tetranucleotide 5-A-G-C-T-3. Estimate the net charge on this tetranucleotide at pH 7.0. What is the complementary tetranucleotide to this sequence?arrow_forwardQuestion 4 Complete the following reactions schemes. Show all organic products and inorganic side-products. DNA OH DNA polymerase III lyase H20 + hydrolase + H,0arrow_forward
- Sketch the structures of ribose and deoxyribose ‐‐‐ what is the structural difference? Which nucleotides are associated with DNA? Which ones with RNA? Why must detergent be added to liberate the DNA? What parts of the cell contain DNA?arrow_forward0 0=P-0-CH₂ 0- H 1) How would you designate this acid in a abbreviation ? 09-0-962 6- H 3) Provide -NH₂ one-letter AR # # 2) 15 this a strand of DNA of RNA? How do you know? an Ntl₂ 0=P-O-CH₂ A K он н abbreviation for the Strand of DNA WITH complementary bases to the one shown above. Indicate the '5' and 3 endsarrow_forwardDraw an example of each of the followings: 1- a simple sugar, 2- an acid sugar, 3- an alcohol sugar, 4- a deoxy sugar, 5- a saturated fatty acid, 6- an unsaturated fatty acid, 7- a triglyceride, 8- a phospholipid, 9- a steroid, 10- an amino acid, 11- a small peptide, and lastly 12- a DNA nucleotide and 13- an RNA nucleotidearrow_forward
- Draw the structures of the following nucleotides.(a) guanosine triphosphate (GTP)(b) deoxycytidine monophosphate (dCMP)(c) cyclic guanosine monophosphate (cGMP)arrow_forwardDraw an example of the followings: 1- an amino acid; 2- a small peptide; 3- a DNA nucleotide; 4- an RNA nucleotide.arrow_forwardThe DNA of bacteriophage lambda has 1.2 x 10^5 nucleotides. How many proteins of molecular weight 40,000 could be coded by this DNA? Assume a molecular weight of 100 for the average amino acid.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