BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 14, Problem 6U
Summary Introduction
Introduction:
Almost all the reactions of the body are controlled or governed by one other enzyme. Like for example if we take the case of digestion there are many enzymes that are involved in the process of digestion so is the case with the replication of DNA. In the process of replication of DNA there are certain enzymes that are needed for the process to be carried out. For example: DNA gyrase, DNA helicase, DNA polymerase and so on.
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Students have asked these similar questions
Base analogs are mutagenic because of which characteristic?
a. They produce changes in DNA polymerase that cause it to malfunction.
b. They distort the structure of DNA.
c. They are similar in structure to the normal bases.
d. They chemically modify the normal bases.
What would be the result if an organism’s telomerase were mutated and nonfunctional?
a. No DNA replication would take place.
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A researcher is performing PCR to amplify a sample of DNA. Unfortunately, he forgot to add the DNA primer prior to starting the experiment. Which of the following results is he most likely to observe?
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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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- Polymerase Chain Reaction, or PCR, can Group of answer choices A. target a specific region of DNA and cut it out of the rest of the genetic material for further analysis. B. copy the number of copies of a selected region of DNA linearly. C. increase the number of copies of a selected region of DNA exponentially. D. copy the entire genome at least a dozen times.arrow_forwardDuring DNA replication, short RNA primers are made by the Primase. Why? a. To provide a 3'-OH so DNA polymerase can begin DNA synthesis. b. To recruit single stranded binding proteins to the correct location. c. To identify the termination sequence for DNA polymerase during DNA synthesis. d. To provide a 3'-OH so RNA polymerase can begin DNA synthesis. e. To identify the origin of replication to recruit the origin replication complex to the correct genomic location.arrow_forwardDNA strands are anti-parallel and DNA polymerase can only synthesize DNA in a 5' to 3' direction. How does the enzyme synthesize both strands at the same time? A. The leading strand is sythesised in Okazaki fragments B. The lagging strand is synthesised in short Okazaki fragments. C. Only one strand is replicated. D. There are more than one DNA polymerase involved.arrow_forward
- DNA polymerase adds nucleotides to Select one: a. the 5′ end, and the leading strand elongates in the 3′ to 5′ direction b. the 3′ end, and the leading strand elongates in the 5′ to 3′ direction c. the 5′ end, and the leading strand elongates in the 5′ to 3′ direction d. the 3′ end, and the leading strand elongates in the 3′ to 5′ directionarrow_forwardWhy must the lagging strand of DNA be replicated in short pieces a. Because of limited space b. To make proofreading of code easier . C. Otherwise, the helix will become distorted . D. The DNA polymerase can synthesize in only one directionarrow_forwardTopoisomerases are enzymes that can: a. join two DNA fragments to become one. b. catalyze conformational change of a protein. c. cut DNA at specific site. d. catalyze the breaking and rejoining of DNA strands which produces DNA that is either more or less superhelical than the original.arrow_forward
- Explain the concept & importance of DNA polymerase III ?arrow_forwardDescribe three major differences between leading and lagging strand synthesis. What feature of DNA polymerase results in the leading and lagging strands being synthesized differentlyarrow_forwardDraw the reaction between a growing strand of RNA and the next nucleotide added. Clearly show the interaction between the template DNA and the rNTP and draw arrows to indicate the reaction that occurs. How does this compare to what occurs in DNA polymerization?arrow_forward
- Place the steps of sanger sequencing in order.A. A fluorescent laser excites the fragments and records the wavelength consistent with a single nucleotide. B. ddNTPs bind and stop chain extension.C. DNA fragments are separated by size through a capillary tube. D. DNA polymerase copies the target region of template DNA.E. The final nucleotide of each fragment is labeled with a fluorescent tag.arrow_forwardDescribe the possible outcome of a PCR experiment in which (a) there is a single-stranded break in the target DNA sequence, which is present in only one copy in the starting sample, and (b) there is a doublestranded break in the target DNA sequence, which is present in only one copy in the starting sample.arrow_forwardthe most efficient general strategy for whole genome sequencing is ? (a) double the coding sequence after sequencing the proteins (b) shotgun sequence and assemble based on overlaps (c) identify mutations that affect glycolysis (d) obtain recombinant DNA clone maps before starting the sequencing (e) obtain comprehensive SNP maps before determining the order of DNA clonearrow_forward
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