Essentials of Genetics (9th Edition) - Standalone book
9th Edition
ISBN: 9780134047799
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 10, Problem 7PDQ
Summary Introduction
To review:
The requirements for in vitro synthesis of DNA under the direction of the polymerase I.
Introduction:
DNA (deoxyribonucleic acid) undergoes the process of replication wherein the strands of the
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What are the requirements for in vitro synthesis of DNA under thedirection of DNA polymerase I?
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What enzymatic features of DNA polymerase prevent it from replicating one of the DNA strands at the ends of linear chromosomes? Compared with DNA polymerase, how is telomerase different in its ability to synthesize a DNA strand? What does telomerase use as its template for the synthesis of a DNA strand? How does the use of this template result in a telomere sequence that is tandemly repetitive?
Chapter 10 Solutions
Essentials of Genetics (9th Edition) - Standalone book
Ch. 10 -
CASE STUDY | At loose ends
A researcher was...Ch. 10 - Prob. 2CSCh. 10 - Prob. 3CSCh. 10 - Prob. 4CSCh. 10 - HOW DO WE KNOW? In this chapter, we focused on how...Ch. 10 - Review the Chapter Concepts list on p. 180. These...Ch. 10 - Compare conservative, semiconservative, and...Ch. 10 - Prob. 4PDQCh. 10 - Predict the results of the experiment by Taylor,...Ch. 10 - Prob. 6PDQ
Ch. 10 - Prob. 7PDQCh. 10 - Prob. 8PDQCh. 10 - Prob. 9PDQCh. 10 - Prob. 10PDQCh. 10 - Prob. 11PDQCh. 10 - Prob. 12PDQCh. 10 - Prob. 13PDQCh. 10 -
14. Distinguish between (a) unidirectional and...Ch. 10 - Prob. 15PDQCh. 10 - Define and indicate the significance of (a)...Ch. 10 - Outline the current model for DNA synthesis.Ch. 10 - Why is DNA synthesis expected to be more complex...Ch. 10 - Prob. 19PDQCh. 10 - Several temperature-sensitive mutant strains of E....Ch. 10 - Prob. 21PDQCh. 10 - Prob. 22PDQ
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- What does DNA polymerase III need to catalyze DNA synthesisarrow_forwardExplain how DNA polymerase and topoisomerase 2 contribute to replication in E.coli and what is the role of the role of the metal ions in the polymerase activity. B)How does the use of an RNA primer rather than a DNA primer affect the fidelity of DNA replication in E.coli?arrow_forwardDescribe an experimental approach to determining the processivity of a DNA polymerase (i.e., the number of nucleotides incorporated per chain per polymerase binding event).arrow_forward
- What are the requirements for strand elongation by DNA polymerase enzymes?arrow_forwardwhat are some examples where DNA polymerase is not functional and translesion DNA synthesis has to occur?arrow_forwardWhat are the purposes of the 3’-5’ and 5’-3’ exonuclease activities of DNA polymerase I and why they happen in a different directions?arrow_forward
- Many of the gene products involved in DNA synthesis were initially defined by studying mutant E. coli strains that could not synthesize DNA. (a) The dnaE gene encodes the a subunit of DNA polymerase III. What effect is expected from a mutation in this gene? How could the mutant strain be maintained? (b) The dnaQ gene encodes the e subunit of DNA polymerase. What effect is expected from a mutation in this gene?arrow_forwardWhat is the difference between primase and DNA polymerase alpha?arrow_forwardwhat does DNA polymerase requires?arrow_forward
- In terms of the new DNA strands that are generated, what are the differences between replication and conventional polymerase chain reaction?arrow_forwardIn terms of new DNA strands that are generated, what are the differences between replication and conventional polymerase chain reactions?arrow_forwardDuring high stress environments, it has been found that some bacteria activate a genetic mechanism that allows them to incorporate more mutations into the DNA during replication. Would the following two enzymes be impacted by such a mechanism? (i)DNA polymerase IIIii) Helicasearrow_forward
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