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 2TYK
Summary Introduction
Introduction:
The process of DNA (Deoxyribose
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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 is true about DNA polymerase?a) It can synthesize DNA in the 5’ to 3’ directionb) It can synthesize DNA in the 3’ to 5’ directionc) It can synthesize mRNA in the 3’ to 5’ directiond) It can synthesize mRNA in the 5’ to 3’ direction
Which of the following best explains the leading daughter DNA strand?
The leading strand is synthesized by the enzyme primase.
It is polymerized discontinuously by DNA polymerase from 5' - 3' direction which leaves gaps knowns as Okazaki fragments.
The gaps within the leading strand are sealed by DNA ligase.
It is polymerized continuously by DNA polymerase from 5' - 3' direction.
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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- DNA replicates by which of the following models? a. conservative b. semiconservative c. dispersive d. none of the abovearrow_forwardEnergy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from ________. a. the nucleotide b. DNA polymerase c. phosphate-group transfers from ATParrow_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
- Cloning 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_forwardA scientist produces an unusual colony of E. coli, that have a mutation to a gene which alters the function of helicase. Which of the following would most likely be observed as a result of this mutation? Group of answer choices RNA polymerase would be unable to replicate DNA. Replication will require a DNA template from another source. No DNA proofreading will occur. No replication fork will be formed.arrow_forwardA new DNA strand elongates only in the 5' to 3' direction because _____. replication must progress toward the replication fork DNA polymerase begins adding nucleotides at the 5' end of the template DNA polymerase can add nucleotides only to the free 3' end the polarity of the DNA molecule prevents addition of nucleotides at the 3' endarrow_forward
- Which of the following has activity that is most similar to RNA Polymerase? Helicase DNA Polymerase Primase Exonucleasearrow_forwardWhy is an RNA primer necessary for DNA replication? The RNA primer is necessary for the activity of DNA ligase. The RNA primer creates the 5â and 3â ends of the strand. DNA polymerase can only add nucleotides to RNA molecules. DNA polymerase can only add nucleotides to an existing strand.arrow_forwardWhich of the following statements about DNA replication is correct? Group of answer choices the leading strand is replicated continuously, while the lagging strand is replicated discontinuously on the leading strand, the new nucleotides are added only to the 5' end of the nucleotide chain on the lagging strand, the new nucleotides are added only to the 5' end of the nucleotide chain DNA polymerase works from 3'--> 5' onlyarrow_forward
- The best explanation for why DNA synthesis is discontinuous would be that ____. DNA polymerase can only move along the DNA strand in one direction This allows for efficient error checking of newly synthesized DNA DNA polymerase must stop periodically to reload more nucleotides None of the abovearrow_forwardWhich of the following is NOT true of DNA replication? a. Helicase uses ATP as an energy source. b. Primase uses ATP to build primers. c. Single-stranded binding proteins are enzymes that hold the strands open. d. Telomerase adds nucleotides to the original DNA template. e. Ligase uses a condensation reaction to make a single phosphodiester bond at each site of ligation..arrow_forwardWhy is the new DNA strand complementary to the 3' to 5' strands assembled in short segments? Why is the new DNA strand complementary to the 3' to 5' strands assembled in short segments? only short DNA sequences can extend off the RNA primers DNA polymerase can assemble DNA only in the 3' to 5' direction it is more efficient than assembling complete new strands the replication forks block the formation of longer strands DNA polymerase can assemble DNA only in the 5' to 3' directionarrow_forward
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