1 SEM CARDLESS ACC W/RAVEN TEXT
12th Edition
ISBN: 9781265321062
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 14, Problem 3S
Enzyme function is critically important for the proper replication of DNA. Predict the consequence of a loss of function for each of the following enzymes
a. DNA gyrase
b. DNA polymerase III
c. DNA ligase
d. DNA polymerase I
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Students have asked these similar questions
Indicate whether each of the following statements is true
or false. If a statement is false, explain why it is false.
A. The repair polymerase is the enzyme that proofreads the newly synthesized
strands to ensure the accuracy of DNA replication.
B. There is a single enzyme that degrades the RNA primers and lays down the
corresponding DNA sequence behind it.
C. DNA ligase is required to seal the sugar-phosphate backbone between all the
DNA fragments on the lagging strand.
D. The repair polymerase does not require the aid of the sliding clamp, because it is
only synthesizing DNA over very short stretches.
Answer the following questions about DNA replication.
On a DNA strand that is being synthesized, which end is growing the 3' end, the 5' end,
or both ends? Explain your answer.
А.
B. On a DNA strand that is being used as a template, where is the copying occurring relative
to the replication origin-3' of the origin, 5', or both?
List six types of DNA repair. Explain the basic features of each.
List at least three different types of DNA repair and briefly explain how each is carried out.
Chapter 14 Solutions
1 SEM CARDLESS ACC W/RAVEN TEXT
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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- Describe the main jobs of each of the following enzymes in the E. coli model of replication: A. DNA Polymerase I B. DNA Polymerase II C. DNA Polymerase IIIarrow_forwardNumerous enzymes are involved in the process of DNA replication. Select a few of these enzymes (three ideally), and explain the impact on DNA replication if the enzymes you've chosen were defective.arrow_forwardWhich of the following types of DNA damage would be hardest to repair using the DNA repair pathways?A. Complete removal of three nucleotides in the middle of one strand.B. A covalent bond between a base on one strand and a base on the complementary strand.C. Incorporation of a sugar other than deoxyribose into one strand.D. Covalent attachment of a short polypeptide to a single base.E. A covalent bond between a base and a deoxyribose on the same strand. Please explain why it's Barrow_forward
- Some antibiotic drugs fight infection by interfering with DNA replication, transcription, or translation in bacteria. Indicate whether each of the following antibiotic drug effects is on replication, transcription, or translation. HINT Each answer (replication, transcription, and translation) is used only once for the following: a. Rifampin binds to bacterial RNA polymerase. b. Streptomycin binds bacterial ribosomes, disabling them. c. Quinolone blocks an enzyme that prevents bacterial DNA from unwinding.arrow_forwardDescribe the steps of DNA replication. ( keep it short please:) )arrow_forwardExplain, in detail, how DNA replication occurs. Include in the discussion the roles of DNA polymerase, RNA polymerase, primase and ligase.arrow_forward
- Name and describe the first four events (and associated enzymes) that happen during DNA replication at the DNA double helix (in correct sequence)arrow_forwardMatch the following descriptions with the enzymes involved in DNA replication. 1. Adds an RNA primer to begin elongation 2. Removes the RNA primer from the beginning of the newly constructed strands 3. Splices lagging strand segments 4. Cleaves the rung of the DNA double helix ladder Description: DNA DNA Helicase Primase Enzyme: Polymerase Ligasearrow_forwardAll of the following proteins function during nucleotide excision repair, EXCEPT: A. DNA pol B. Uvr A C. Uvr C D. Ligase E. Gyrasearrow_forward
- DNA replication involves a series of steps, including initiation, making primers, extension, and connecting DNA fragments. The cell uses different enzymes in a particular order to accomplish these steps. Which of the following represents the correct general order of enzyme use? A. DNA polymerases, helicase, primase, ligase B. Helicase, ligase, primase, DNA polymerases C. Helicase, primase, DNA polymerases, ligase D. Primase, helicase, DNA polymerases, ligasearrow_forwardMatch the following type of DNA repair mechanism with the most appropriate definition. Nucleotide excision repair Homologous recombination Base excision repair Nonhomologous end joining A. Repairs thymine dimers by removing a section of the strand B. Corrects damaged bases by removing only the base C. Repairs double strand breaks by joining the ends D. Repairs double strand breaks by copying second chromosomearrow_forwardDNA repair is an important mechanism that protects the genetic material from damage. While working in the laboratory, you forget to switch off the UV lamp in the laminar flow. You are worried that this might have caused damage to your DNA. Name and discuss the kind of DNA damage that could result from this accident, as well as how the cell will repair this damage.arrow_forward
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