Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 12, Problem 4TYU
The two complementary strands of the DNA double helix are held to each other by (a) ionic bonds between deoxyribose molecules (b) ionic bonds between phosphate groups (c) covalent bonds between
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Enzymes that break down DNA catalyze the hydrolysis of thecovalent bonds that join nucleotides together. What wouldhappen to DNA molecules treated with these enzymes?(A) The two strands of the double helix would separate.(B) The phosphodiester linkages of the polynucleotidebackbone would be broken.(C) The pyrimidines would be separated from the deoxyribosesugars.(D) All bases would be separated from the deoxyribose sugars.
The base composition of one of the DNA chains of a DNA double helix contains 18 mol-%A, 35 mol-%T, 26 mol-%C, and 21 mol-%G
(a) What is the base composition of the complementary DNA chain?
(b) Is the total amount of purine bases equal to the total amount of pyrimidine bases for the DNA double helix?
Each DNA strand has a backbone that consists of alternating (a) purines and pyrimidines (b) nucleotide bases (c) hydrogen bonds and phosphodiester linkages (d) deoxyribose and phosphate (e) phosphate and phosphodiester linkages
Chapter 12 Solutions
Biology (MindTap Course List)
Ch. 12.1 - Summarize the evidence that accumulated during the...Ch. 12.1 - Prob. 2LOCh. 12.1 - Prob. 1CCh. 12.1 - Prob. 2CCh. 12.2 - Explain how nucleotide subunits link to form a...Ch. 12.2 - Describe how the two strands of DNA are oriented...Ch. 12.2 - Prob. 5LOCh. 12.2 - Prob. 1CCh. 12.2 - Prob. 2CCh. 12.2 - Prob. 3C
Ch. 12.3 - Cite evidence from Meselson and Stahls experiment...Ch. 12.3 - Prob. 7LOCh. 12.3 - Explain the complexities of DNA replication that...Ch. 12.3 - Discuss how enzymes proofread and repair errors in...Ch. 12.3 - Prob. 10LOCh. 12.3 - How did the ability to distinguish old and newly...Ch. 12.3 - What feature of DNA structure causes DNA...Ch. 12.3 - What is the reason that eukaryotic cells require...Ch. 12 - When Griffith injected mice with a combination of...Ch. 12 - Which of the following inspired Avery and his...Ch. 12 - In the Hershey-Chase experiment with...Ch. 12 - The two complementary strands of the DNA double...Ch. 12 - If a segment of DNA is 5 CATTAC 3, the...Ch. 12 - Each DNA strand has a backbone that consists of...Ch. 12 - The experiments in which Meselson and Stahl grew...Ch. 12 - The statement DNA replicates by a semiconservative...Ch. 12 - Topoisomerases (a) synthesize DNA (b) synthesize...Ch. 12 - A lagging strand forms by (a) joining primers (b)...Ch. 12 - The immediate source of energy for DNA replication...Ch. 12 - Which of the following statements about eukaryotic...Ch. 12 - Prob. 13TYUCh. 12 - Prob. 14TYUCh. 12 - Prob. 15TYUCh. 12 - INTERPRET DATA In the Hershey-Chase experiment,...Ch. 12 - EVOLUTION LINK How does DNA being the universal...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements is (are) true? (a) The two strands of DNA run parallel from their 5' to their 3' ends. (b) An adenine–thymine base pair contains three hydrogen bonds. (c) Positively charged counterions are associated with DNA. (d) DNA base pairs are always perpendicular to the helix axisarrow_forwardWhen DNA is heated sufficiently, the strands separate. The energy that it takes to separate the DNA is related to the amount of guanine and cytosine bases. Why is this so? (A) Adenine and thymine make 3 hydrogen bonds between each other, and guanine and cytosine don't make any hydrogen bonds. (B) Guanine and cytosine make 3 hydrogen bonds between each other, and adenine and thymine don't make any hydrogen bonds. (C) It takes more energy to break an A-T bond than it does a G-C bond. (D) It takes more energy to break a G-C bond than it does an A-T bond.arrow_forwardWhat holds the two strands of a DNA double helix together? A) hydrogen bonds between bases B) hydrogen bonds between phosphates C) hydrophobic bonds between bases D) hydrophobic bonds between sugars E) phosphate bondsarrow_forward
- (1) Which end (5' or 3') of the molecule is here? (2) Which enzyme is probably functioning here to deal with supercoils in the DNA? (3) Which enzyme is probably functioning here to unwind the DNA? (4) Which nucleic acid is probably depicted here? (5) What are these short DNA fragments usually called? (6) Which enzyme probably functions here to couple these two newly synthesized fragments of DNA? (7) Is this strand the leading or lagging strand? (8) Which end (5' or 3') of the molecule is here?arrow_forwardMoira, a biochemistry major, wanted to explore the shapes a single-stranded DNA molecule can take. She sketched the two shapes below. Her professor was impressed with Moira’s imagination and artistic ability, but she informed Moira that only one of her sketches was feasible. In the sketches, the lines indicate complementary base pairing. (d) Would a new double-stranded molecule assume the shape similar to one in the drawing? (e) Why or why not?arrow_forwardHow many possible nucleotide sequences are there for a stretch of DNA that is N nucleotides long, if it is (a) single- stranded or (b) double-stranded?arrow_forward
- Which of the following is true regarding the 5’ vs. the 3’ end of a strand of DNA? a) only double-stranded DNA can have a 5' and a 3' end b) 5' and 3' are designations of the carbon in the deoxyribose of a nucleotide that is not bound to another deoxyribose or phosphate group c) 5' and 3' are designations of the DNA base that is unbound to another base d) The 5' end of DNA is always considered the start of the gene and the 3' end is considered the endarrow_forwardTRUE OR FALSE a) The 2 chains composing one double helix run in opposite directions; they are antiparallel (one is 5’->3’ and the other 3’->5’). b) DNA molecules can perform their function in replication and transcription as long as the hydrogen bonds between the bases remain intact.arrow_forwardWrite the sequence of the complementary DNA strand thatpairs with each of the following DNA base sequences:(a) GGTTAC(b) CCCGAAarrow_forward
- What statement about DNA polarity is TRUE? One end of the chain has a 5'-OH group attached to a phosphoryl group. The other end of the chain has a free 3'-OH group, which is linked to another nucleotide. One end of the chain has a free 5'-OH group or 5'-OH group attached to a phosphoryl group. The other end of the chain has a free 3'-OH group. None is linked to another nucleotide. One end of the chain has a free 3'-OH group or 3'-OH group attached to a phosphoryl group. The other end of the chain has a free 3'-OH group, which is linked to another nucleotide. One end of the chain has only a free 5'-OH group. The other end of the chain has a free 3'-OH group. Neither is linked to another nucleotide. One end of the chain has a free 5'-OH group. The other end of the chain has a free 3'-OH group.arrow_forwardConsider the following image - the dotted lines represent hydrogen bonds between nitrogenous bases: (T) Thymine (A) Adenine (A) Adenine (U) Uracil (C) Cytosine (G) Guanine (C) Cytosinel (G) Guanine Which of the following does this image likely represent? OA section of an enzyme bound to a DNA strand A section of a double stranded DNA A section of RNA primer bound to a DNA strand Two sections of an RNA strands bound togetherarrow_forwardThe following diagrams represent DNA molecules that are undergoing replication. Draw in the strands of newly synthesized DNA and identify (a) the polarity of the newly synthesized strands, (b) the leading and lagging strands, (c) Okazaki fragments, and (d) RNA primers.arrow_forward
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