
Concept explainers
Label each statement as pertaining to DNA, RNA, or both.
- The polynucleotide is double stranded.
- The polynucleotide may contain adenine.
- The polynucleotide may contain dGMP.
- The polynucleotide is a
polymer of ribonucleotides.

(a)
Interpretation:
Whether the statement "the polynucleotide is double stranded" pertaining to DNA, RNA or both should be determined.
Concept Introduction:
There are two types of nucleotide. They are DNA and RNA. Nucleic acids are composed of monomers called nucleotides.
Answer to Problem 22.27P
DNA
Explanation of Solution
DNA consists of two polynucleotide strands which wind into a right-handed double helix.
RNA is single stranded structure.

(b)
Interpretation:
Whether the statement "the polynucleotide may contain adenine" pertaining to DNA, RNA or both should be determined.
Concept Introduction:
There are two types of nucleotide. They are DNA and RNA. Nucleic acids are composed of monomers called nucleotides.
There are five common nitrogen-containing bases that are present in nucleic acids; cytosine, uracil, thymine, adenine and guanine.
Answer to Problem 22.27P
Both DNA and RNA
Explanation of Solution
There are five common nitrogen-containing bases that are present in nucleic acids; cytosine, uracil, thymine, adenine and guanineDNA contains the bases A, G, C, and T.
RNA contains the bases A, G, C, and U.

(c)
Interpretation:
Whether the statement "the polynucleotide may contain dGMP" pertaining to DNA, RNA or both should be determined.
Concept Introduction:
dGMP stands for Deoxyguanosine 5'-monophosphate. Deoxyribonucleotides are derived from 2-deoxyribose.
Answer to Problem 22.27P
DNA
Explanation of Solution
dGMP stands for Deoxyguanosine 5'-monophosphate. Deoxyribonucleotides are derived from 2-deoxyribose.DNA is a polymer of deoxyribonucleotides.
Therefore, dGMP present in DNA.

(d)
Interpretation:
Whether the statement "the polynucleotide is a polymer of ribonucleotides" pertaining to DNA, RNA or both should be determined.
Concept Introduction:
To make a Nucleotides; a phosphate group is added to the 5'-OH of a nucleoside.
Nucleotides are named by adding the term 5'-monophosphate to the name of the nucleoside from whichthey are derived.
Ribonucleotides are derived from ribose. Deoxyribonucleotides arederived from 2-deoxyribose.
Answer to Problem 22.27P
RNA
Explanation of Solution
Ribonucleotides are derived from ribose. Deoxyribonucleotides are derived from 2-deoxyribose. DNA is a polymer of deoxyribonucleotides.
RNA is a polymer of ribonucleotides.
Want to see more full solutions like this?
Chapter 22 Solutions
General, Organic, & Biological Chemistry
- true or false, given that a 20.00 mL sample of NaOH took 24.15 mL of 0.141 M HCI to reach the endpoint in a titration, the concentration of the NaOH is 1.17 M.arrow_forwardin the bromothymol blue experiment, pKa was measured. A closely related compound has a Ka of 2.10 x 10-5. What is the pKa?a) 7.1b) 4.7c) 2.0arrow_forwardcalculate the equilibrium concentration of H2 given that K= 0.017 at a constant temperature for this reaction. The inital concentration of HBr is 0.050 M.2HBr(g) ↔ H2(g) + Br2(g)a) 4.48 x 10-2 M b) 5.17 x 10-3 Mc) 1.03 x 10-2 Md) 1.70 x 10-2 Marrow_forward
- true or falsegiven these two equilibria with their equilibrium constants:H2(g) + CI2(l) ↔ 2HCI(g) K= 0.006 CI2(l) ↔ CI2(g) K= 0.30The equilibrium contstant for the following reaction is 1.8H2(g) + CI2 ↔ 2HCI(g)arrow_forwardI2(g) + CI2(g) ↔ 2ICIK for this reaction is 81.9. Find the equilibrium concentration of I2 if the inital concentration of I2 and CI2 are 0.010 Marrow_forwardtrue or false,the equilibrium constant for this reaction is 0.50.PCI5(g) ↔ PCI3(g) + CI2(g)Based on the above, the equilibrium constant for the following reaction is 0.25.2PCI5(g) ↔. 2PCI3(g) + 2CI2(g)arrow_forward
- true or false, using the following equilibrium, if carbon dioxide is added the equilibrium will shift toward the productsC(s) + CO2(g) ↔ 2CO(g)arrow_forward2S2O2/3- (aq) + I2 (aq) ---> S4O2/6- (aq) +2I- (aq) Experiment I2 (M) S2O3- (M) Initital Rate (M/s) 1 0.01 0.01 0.0004 2 0.01 0.02 0.0004 3 0.02 0.01 0.0008 Calculate the overall order for this reaction using the table data a) 3b) 0c) 2d) 1arrow_forwardthe decomposition of N2O5 is the first order with a half-life of 1.98 minutes. If the inital concentration of N2O5 is 0.200 M, what is the concentration after 6 minutes?a) 0.612 Mb) 0.035 Mc) 0.024 Md) 0.100 Marrow_forward
- 20.00 mL of 0.150 M HCI is titrated with 0.075 M NaOH. What volume of NaOH is needed?a) 50 mLb) 20 mLc) 40 mLd) 26.66 mLarrow_forward20.00 mL of 0.150 M NaOH is titrated with 37.75 mL of HCI. What is the molarity of the HCI?a) 0.150 Mb) 0.079 Mc) 0.025 Md) 0.050 Marrow_forwardin the following reaction, the OH- acts as which of these?NO2- (aq) + H2O (l) ⇌ OH- (aq) + HNO2 (aq)a) not a weak acidb) basec) acidarrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,




