Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 21, Problem 25P
Indicate whether each functional group of the five heterocyclic bases in
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Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present?
Which is a primary function of nucleic acids? a) energy storage b) coding the amino acid sequence for proteins c) oxygen transport d) regulation of metabolic processes
Very generally, what is the process of expressing a gene to make protein?
O transcription of DNA followed by translation of mRNA
O replication of DNA followed by translation of mRNA
O transcription of DNA followed by replication of mRNA
translation of DNA followed by transcription of mRNA
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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- Draw the Lewis diagram for the DNA fragment that is complementary to the guanine-thymine-adenine DNA fragment.arrow_forwardSuppose that 28% of the nucleotides in a DNA molecule are deoxythymidine 5'-monophosphate, and that during DNA replication the percentage amounts of available nucleotide bases art 22% A, 22% C, 28% G. and 28% T. Which base would be depleted first in the replication process?arrow_forward25-8 Draw the structures of ADP and GDP. Are these structures parts of nucleic acids?arrow_forward
- Which pentose sugar is present in DNA? In RNA?arrow_forwardIn the flow of genetic information, what is meant by the terms transcription and translation?arrow_forwardThe DNA template strand segment 3TTCAAACCGTAC5 upon transcription and translation produces the amino acid sequence Lys-Phe-Gly-Met. What is the amino acid sequence produced if a frameshift mutation occurs in which the third A base in the original DNA sequence is removed?arrow_forward
- Indicate whether each of the following statements concerning nucleic acids is true or false. a. The monomer units in nucleic acids are amino acids. b. The primary function for DNA is storage and transfer of genetic information. c. RNA is found throughout a cell. d. RNA is passed from existing cells to new cells during cell division.arrow_forwardIndicate whether each of the following are complementary base pairs in DNA molecules. a. AA b. AC c. AT d. GTarrow_forwardC) NUCLEIC ACID Sketch the general structure of a nucleic acid monomer and name all characteristic chemical groups: TETAAL Sketch the general structure of a nucleic acid polymer and name all characteristic chemical group: Name of bond between monomers: D) LIPID Sketch the general structure of a triglyceride molecule, name the characteristic chemical groups that form the molecule, and label the chemical linkages between the groups: inte imveneg Sketch the general structure of a phospholipid molecule, name the characteristic chemical groups that form the mol- ecule, and show how phospholipids align to create cell membranes. Name the characteristic that distinguishes all lipids from other large molecules:arrow_forward
- What is the function of DNA? * carrying the correct amino acid to the site of protein synthesis in the ribosome usage of the bases of cytosine, uracil, adenine and guanine involvement in protein synthesis repository of genetic information Which of the following condiments is an example of lipids? * salt sugar oil O soy saucearrow_forwardEnter a tick mark (/) in the appropriate column to indicate whether the following are properties or examples of carbohydrates, lipids, proteins or nucleic acids. You may have multiple tick marks if the statement pertains to more than one of the given choices. Properties Carbo Lipids Protein Nucleic hydrates S Acids 1.Used as structural components in cell membrane 2.Carry instructions to control cell activities 3.Contain carbon, hydrogen, oxygen and phosphate 4.Provide energy 5.Catalyze chemical reactionsarrow_forwardA portion of one strand in a DNA molecule has the following sequence of bases ATATCGTCCGA Identify the sequence of bases in the other strand of the DNA molecule that would hydrogen-bond to these basesarrow_forward
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