Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 9.5, Problem 1TYK
Summary Introduction
Introduction:
The eukaryotic
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Given the replication events listed below which even takes place first
Single Strand binding proteins bind
Primase adds an RNA primer
Helicase unwinds the DNA double helix
DNA polymerase begins adding DNA nucleotides
Which of the following statements BEST describes the process of DNA Replication?
Group of answer choices
The two strands of the parental molecule separate and serves as template for synthesis of a new strand.
Each new strand is identical to its template strand.
Each strand of both daughter molecules contains a mixture of old and newly synthesized DNA.
The two parental strands reassociate after acting as templates for new strands restoring the parental double helix.
Which of the following enzymes has a major role in joining of DNA fragments (Okasaki fragments) during DNA replication?
Group of answer choices
DNA gyrase
Helicase
Primase
DNA polymerase
DNA ligase
Chapter 9 Solutions
Principles of Biology
Ch. 9.1 - Look ahead to Figure 17.10. How does bacterial...Ch. 9.1 - Prob. 1TYKCh. 9.2 - Prob. 1CCCh. 9.2 - Prob. 2CCCh. 9.2 - Prob. 3CCCh. 9.2 - A nucleotide composed of deoxyribose, phosphate,...Ch. 9.2 - Prob. 2TYKCh. 9.2 - Prob. 3TYKCh. 9.3 - Prob. 1TYKCh. 9.3 - To determine the structure of DNA, Watson and...
Ch. 9.4 - Prob. 1CCCh. 9.4 - Prob. 1TYKCh. 9.4 - Prob. 2TYKCh. 9.5 - Prob. 1CCCh. 9.5 - Prob. 1TYKCh. 9.5 - Prob. 2TYKCh. 9.5 - Prob. 3TYKCh. 9.6 - Prob. 1CCCh. 9.6 - A nucleosome is composed of 146 bp or 147 bp of...Ch. 9.6 - After they have replicated and become compacted in...Ch. 9.6 - Prob. 1BCCh. 9.6 - Which of the following is the correct order for...Ch. 9 - What is/are the main component(s) of chromosomes?...Ch. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Of the following statements, which is correct when...Ch. 9 - Prob. 6TYCh. 9 - Prob. 7TYCh. 9 - Prob. 8TYCh. 9 - Prob. 9TYCh. 9 - The conversion of euchromatin into heterochromatin...Ch. 9 - What are the four criteria that the genetic...Ch. 9 - What are the key features of DNA that allow it to...Ch. 9 - PRINCIPLES A principle of bioloy is that structure...Ch. 9 - Prob. 1CBQCh. 9 - Prob. 2CBQ
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- How does DNA replication occur in a precise manner to ensure that identical genetic information is put into the new chromatid? See Figures 8.12 and 8.13. FIGURE 8.12 In DNA replication, the two polynucleotide strands uncoil, and each is a template for synthesizing a new strand. A replicated DNA molecule contains one new strand and one old strand. This mechanism is called semiconservative replication. FIGURE 8.13 A close-up look at the process of DNA replication. (a) As the strands uncoil, bases are added to the newly synthesized strand by complementary base pairing with bases in the template strand. The new bases are linked together by DNA polymerase. (b) DNA synthesis can proceed only in the 5 3 direction; newly synthesized DNA on one template strand is made in short segments and linked together by the enzyme DNA ligase.arrow_forwardFigure 14.14 You isolate a cell strain in which the joining of Okazaki fragments is impaired and suspect that a mutation has occurred in an enzyme found at the replication fork. Which enzyme is most likely to be mutated?arrow_forwardMake the complementary strand for the following DNA template and label both strands as 5 to 3 or 3 to 5 (P = phosphate in the diagram). Draw an arrow showing the direction of synthesis of the new strand. How many hydrogen bonds are in this double strand of DNA? template: PAGGCTCGOH new strand:arrow_forward
- DNA replicates by which of the following models? a. conservative b. semiconservative c. dispersive d. none of the abovearrow_forwardDNA replication requires ________ . a. DNA polymerase c. primers b. nucleotides d. all are requiredarrow_forwardCloning Genes Is a Multistep Process Which enzyme is responsible for covalently linking DNA strands together? a. DNA polymerase b. DNA ligase c. EcoRl d. restriction enzymes e. RNA polymerasearrow_forward
- Which of the following enzymes can break, and rejoin, phosphodiester bonds during the normal DNA replication process in the chromosomes of E. coli cells? single-stranded binding proteins RNA polymerase topoisomerase DNA helicase DNA ligasearrow_forwardWhy is replication called semi-conservative? each new molecule of DNA contains one template strand and a newly synthesized one only some of the lagging strand is conserved all strands are conserved except for one strand not all leading strands are conservedarrow_forwardWhich of the following joins Okazaki fragments by forming the last phosphodiester/ester bond during the termination of replication in the lagging strand? RNA Primase DNA Topoisomerase DNA Polymerase III DNA Ligasearrow_forward
- What is the directionality of the given process? Choices: 3'-5' ,5'-3' Exonuclease activity Addition of nucleotides away from the replication fork Complementary strand of the continuous strand Addition of nucleotides going to the replication forkarrow_forwardWhich of the following enzymes ensures that the correct base of a deoxynucleotide for growing the chain is aligned with template chain? DNA gyrases DNA ligases DNA polymerases primasesarrow_forwardWhich of the following enzymes relaxes the DNA double helix to avoid tensional force from supercoiling? DNA Ligase DNA Helicase DNA Gyrase/Topoisomerase DNA Polymerasearrow_forward
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