Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 26.3, Problem 5P
If one of the strands of DNA has the following sequence of bases running in the 5' → 3' direction,
5’—G—G—A—C—A—A—T—C—T—G—C—3’
a. what is the sequence of bases in the complementary strand?
b. what base is closest to the 5'-end in the complementary strand?
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a. Is the base present in this nucleotide a purine or a pyrimidine?
b. What is the abbreviation for the base present in this nucleotide? (A, T, C, G, U)
Would the sugar in this nucleotide be found in molecules of DNA or RNA or both?
d. Would the base in this nucleotide be found in molecules of DNA, RNA or both?
When a single strand of DNA is making a copy of itself it uses the above code◦ AAT CGC AGG CCA ATG (example DNA code)◦ TTA GCG ____ AAC ___ (example DNA key)
AAT-CGT-TCG =
Chapter 26 Solutions
Organic Chemistry (8th Edition)
Ch. 26.1 - In acidic solutions, nucleosides are hydrolyzed to...Ch. 26.1 - Draw the structure for each of the following: a....Ch. 26.3 - Indicate whether each functional group of the five...Ch. 26.3 - Prob. 4PCh. 26.3 - If one of the strands of DNA has the following...Ch. 26.4 - The 2',3-cyclic phosphodiester that is formed...Ch. 26.5 - Using a dark line for the original parental DNA...Ch. 26.7 - Why do both thymine and uracil specify the...Ch. 26.9 - If methionine is always the first amino acid...Ch. 26.9 - Four Cs occur in a row in the segment of mRNA...
Ch. 26.9 - UAA is a stop codon. Why does the UAA sequence in...Ch. 26.9 - Prob. 12PCh. 26.9 - Write the sequences of bases in the sense strand...Ch. 26.9 - List the possible codons on mRNA that speciy each...Ch. 26.10 - Adenine can be deaminated to hypoxanthine, and...Ch. 26.10 - Explain why thymine cannot be deaminated.Ch. 26.12 - Which of the following base sequences is most...Ch. 26 - What nonapeptide is coded for by the following...Ch. 26 - What is the sequence of bases in the template...Ch. 26 - Prob. 20PCh. 26 - A segment of DNA has 18 base pairs. It has 7...Ch. 26 - Name the following:Ch. 26 - Prob. 23PCh. 26 - Propose a mechanism for the following reaction:Ch. 26 - The first amino acid incorporated into a...Ch. 26 - Match the codon with the anticodon:Ch. 26 - a. Using the single-letter abbreviations for the...Ch. 26 - Which of the following pairs of dinucleotides are...Ch. 26 - Human immunodeficiency virus (HIV) is the...Ch. 26 - If a mRNA contained only U and G in random...Ch. 26 - Why is the codon a triplet rather than a doublet...Ch. 26 - RNAase, the enzyme that catalyzes the hydrolysis...Ch. 26 - The amino acid sequences of peptide fragments...Ch. 26 - Which cytosine in the following sense strand of...Ch. 26 - Prob. 36PCh. 26 - Sodium nitrite, a common food preservative (page...Ch. 26 - Why does DNA not unravel completely before...Ch. 26 - Staphylococcus nuclease is an enzyme that...
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- The base sequences in mRNA that code for certain amino acids are Glu: GAA, GAG Val: GUU, GUC, GUA, GUG Met: AUG Trp: UGG Phe: UUU, UUC Asp: GAU, GAC These sequences are complementary to the sequences in DNA. a. Give the corresponding sequences in DNA for the amino acids listed above. b. Give a DNA sequence that would code for the peptide trp-glu-phe-met. c. How many different DNA sequences can code for the tetrapeptide in part b? d. What is the peptide that is produced from the DNA sequence TACCTGAAG? e. What other DNA sequences would yield the same tripeptide as in part d?arrow_forwardThe base composition for one of the strands of a DNA double helix is 19% A, 34% C, 28% G, and 19% T. What is the percent base composition for the other strand of the DNA double helix?arrow_forwardWrite the base sequence and label the 3’ and 5’ ends of the complementary strand for a segment of DNA with the base sequence 5’ GCTATTGCA 3’.arrow_forward
- DNA Replication1) Construct the complementary strand of DNA (strand II) that would pair with the DNA strand I sequence below. Remember that nucleotides are always added in the 5 prime to 3 prime direction. The base pairing rules are: DNA DNAadenine (A) always bonds with thymine (T) thymine (T) always bonds with adenine (A) guanine (G) always bonds with cytosine (C) cytosine (C) always bonds with guanine (G) STRAND I: 3’ T A C T A T A G T C T G T C T C C C A C T 5’ STRAND II: 5’ 3’arrow_forward+ In the drawing area below you'll find half of a single base pair of DNA. Draw the rest of the base pair. Note: only the nucleobase is shown, and R is used to stand for the "rest" of the strand of DNA. Please use R in your drawing to represent the "rest" of the other strand of DNA. H. H N R N H X : ⑤arrow_forwardWhich of the following amino acid has an aromatic group? * (2 Points) valine O lysine threonine O tyrosinearrow_forward
- A circular double-stranded DNA molecule contains 4200 base pairs. In solu- tion the molecule is in a B-form helix, with about 10.5 base pairs per turn. The DNA circle has 12 superhelical turns. What is its superhelix density o?arrow_forwardWhich structure is NOT present in DNA? A B D E NH2 NH2 H3C. *NH2 H H H. Structure I is an example of OH OH HO, HỌ но HO но- -H -H- -- но -H но- -H но -H но -H H. -Он H H- -OH H- -OH H- -O- -OH H- -OH Он H HỎ он Но но OH II II IV V Structure I is an example Sugars that contain aldehyde groups that are oxidised to carboxylic acids are classified as reducing sugars. Which of the following is TRUE about structure I and II? -I and Il are non-reducing sugars -I and Il are reducing sugars - I is a non-reducing sugar, II is a reducing sugar - I is a reducing sugar, Il is a non-reducing sugar CH,OH O CH,OH но CH;OH H OH H OH CH,OH он но CH2OH O OH H H он OH H H OH но H онarrow_forwardThe structure is a monomeric unit of what polynucleotide: DNA or RNA?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