Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 14, Problem 7U
Which of the following is NOT pan of the Watson-Crick model of the structure of DNA?
a. DNA is composed of two strands.
b. The two DNA strands are oriented in parallel (5′-to-3′).
c. Purines bind to pyrimidines.
d. DNA forms a double helix.
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Students have asked these similar questions
In the Watson-Crick structure of DNA, the:
a. adenine content of one strand must equal the thymine content of the same strand.
b. nucleotides are arranged in the A-form.
c. purine content (fraction of bases that are purines) must be the same in both strands.
d. two strands are parallel.
e. the strands are complementary to each other.
Which of the following is true about the structure of DNA as proposed by Watson and Crick (B-form DNA)?
A. DNA forms a left-handed double helix.
B. The strands of DNA are parallel.
C. The complementary base pairs are held together by hydrogen bonds.
D. A complete turn of the double helix occurs after every base pair.
How will each of the following substances or conditions affect DNA structure? a. ethanol; b. heat; c. dimethylsulfate; d. nitrous acid; e. 5-BU
Chapter 14 Solutions
Biology
Ch. 14.1 - Describe the experiments of Griffith and Avery.Ch. 14.1 - Evaluate the evidence for DNA as genetic material.Ch. 14.2 - Explain how the WatsonCrick structure rationalized...Ch. 14.2 - Prob. 2LOCh. 14.3 - Prob. 1LOCh. 14.3 - Prob. 2LOCh. 14.4 - Prob. 1LOCh. 14.4 - Prob. 2LOCh. 14.4 - Diagram the functions found at the replication...Ch. 14.5 - Compare eukaryotic replication with prokaryotic.
Ch. 14.5 - Prob. 2LOCh. 14.5 - Prob. 3LOCh. 14.6 - Prob. 1LOCh. 14.6 - Prob. 2LOCh. 14 - Prob. 1DACh. 14 - Prob. 2DACh. 14 - Prob. 1IQCh. 14 - Prob. 2IQCh. 14 - How does the structure of eukaryotic genomes...Ch. 14 - Prob. 4IQCh. 14 - Prob. 1UCh. 14 - Which of the following is NOT a component of DNA?...Ch. 14 - Chargaff studied the composition of DNA from...Ch. 14 - The bonds that hold two complementary strands of...Ch. 14 - Prob. 5UCh. 14 - Prob. 6UCh. 14 - Which of the following is NOT pan of the...Ch. 14 - If one strand of a DNA is 5 ATCGTTAAGCGAGTCA 3,...Ch. 14 - Hershey and Chase used radioactive phosphorus and...Ch. 14 - The Meselson and Stahl experiment used a density...Ch. 14 - Prob. 4ACh. 14 - If the activity of DNA ligase was removed from...Ch. 14 - Successful DNA synthesis requires all of the...Ch. 14 - The synthesis of telomeres a. uses DNA polymerase,...Ch. 14 - When mutations that affected DNA replication were...Ch. 14 - Prob. 1SCh. 14 - In the Meselson-Stahl experiment, a control...Ch. 14 - Enzyme function is critically important for the...
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- In Watson and Crick's model of DNA structure, the two strands of the DNA double helix are joined through a. Ionic bonds b. Hydrophobic interactions c. Covalent bonds d. Disulfide bonds e. Hydrogen bondsarrow_forwardWhich of the following does not contribute to the stability of the DNA? A. The presence of hydrogen between nitrogenous bases. B. Presence of the N-glycosidic bond between the nitrogenous base and phosphate group C. Presence of phosphodiester bond between the sugar and phosphate group on the sugar-phosphate backbone. D. Hydrophobic interaction between stacked nitrogenous bases.arrow_forwardWhat is the effect of incubating a mixture of RNA and DNA with 0.1 M NaOH? A. DNA is hydrolyzed to nucleoside monophosphates. B. No effect. RNA and DNA are resistant to base hydrolysis. C. RNA is hydrolyzed to nucleoside monophosphates. D. Both RNA and DNA are hydrolyzed to nucleoside monophosphates. Stem-loop structures in RNA resemble the ________ form of double-helical DNA. A. A B. B C. supercoiled circular D. Zarrow_forward
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- Identify the statements that describe the structure of DNA. (select all that are correct) A. A DNA double helix contains two sugar‑phosphate backbones oriented in opposite directions. B. Adenine is paired with thymine, and guanine is paired with cytosine. C. Adenine is paired with cytosine, and guanine is paired with thymine. D. The five‑carbon sugar of DNA is called ribose. E. The five‑carbon sugar of DNA is called deoxyribose.arrow_forward(1) A scientist discovers an unknown nucleic acid, they analyze it chemically and discover the following: 22% of the nitrogenous bases contain adenine, 40% contain guanine, 20% contain thymine and 18% contain cytosine. Based only on this information, this nucleic acid must be: a. Single-Stranded DNA b. Single-stranded RNA c. Double-Stranded DNA d. Double- stranded RNA (2) In a double-stranded molecule of DNA which of the following ratios should equal 1? (pick 3) a. A/C b. (A+T) / (G+C) c. (A+G) / (C + T) d. purines/ pyrimidines e. G/C (3) why is DNA replication is said to be bidirectional ?arrow_forwardWhile studying the structure of a small gene that was sequenced during the Human Genome Project, an investigator notices that one strand of the DNA molecule contains 20 As, 25 Gs, 30 Cs, and 22 Ts. How many of each base is found in the complete double-stranded molecule? A. A = 40, G = 50, C = 60, T = 44 B. A = 44, G = 60, C = 50, T = 40 C. A = 45, G = 45, C = 52, T = 52 D. A = 50, G = 47, C = 50, T = 47 E. A = 42, G = 55, C = 55, T = 42arrow_forward
- The “rungs” of the DNA double helix are held together by a. ionic bonds.b. hydrogen bonds.c. covalent bonds.d. the force of the backbones on the outside of the helix pushing them together.arrow_forward8)arrow_forwardWhich of the following best describes the structural component in which information is stored on a DNA molecule? A the hydrogen bonds between base pairs B the linear sequence of nucleotides n the orientation of sugars in the backbone D the antiparallel orientation of the double-strandarrow_forward
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