Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 2TYK
What is the function of primase?
a. synthesis of the short section of double-stranded DNA required by DNA polymerase
b. synthesis of a short RNA strand that is complementary to single-stranded DNA
c. closing the gap at the 3' end of DNA after excision repair
d. removing primers and synthesizing a short section of DNA to replace them
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What is the role of DNA polymerase in DNA replication?
O A. DNA polymerase replicates tRNA, mRNA and rRNA
B. DNA polymerase adds A-U-G-C as compliments to the original DNA strand to make
an identical copy.
O C. DNA polymerase "unzips" the DNA
D. DNA polymerase adds complimentary free nucleotides to the original strand to
make and identical copy.
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What is the correct chronological order of the initiation of DNA replication?
A. Hydrogen bonds between complementary base pairs are broken at origin of replication
B. Primase binds to the site of origin.
C. DNA polymerase binds to the template strand.
D. An RNA primer is synthesized.
E. Incoming deoxynucleoside triphosphates are added to the growing strand.
In the dideoxy-sequencing reaction, what terminates DNA synthesis at a particular base? a. The absence of a base on the ddNTP halts the DNA polymerase. b. The ddNTP causes a break in the sugar–phosphate backbone. c. DNA polymerase will not incorporate a ddNTP into the growing DNA strand. d. The absence of a 3′-OH group on the ddNTP prevents the addition of another nucleotide.
Chapter 15 Solutions
Biological Science (7th Edition)
Ch. 15 - 1. Which of the following is not a property of DNA...Ch. 15 - 2. What is the function of primase?
a. synthesis...Ch. 15 - 3. How are Okazaki fragments synthesized?
a. using...Ch. 15 - Prob. 4TYKCh. 15 - PROCESS OF SCIENCE Researchers design experiments...Ch. 15 - 7. How does telomerase prevent linear chromosomes...Ch. 15 - Prob. 8TYUCh. 15 - Prob. 11PIATCh. 15 - Prob. 12PIATCh. 15 - Prob. 14PIAT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What can cause mutations in the DNA sequence? Select all that apply. A. Failure of repair enzymes to recognize mismatched nucleotides before and during DNA replication B. Recognition of mismatched bases by repair enzymes before and during DNA replication C. Exposure of cells to ionizing radiation D. Nucleotide errors occurring during DNA replicationarrow_forwardWhat can cause mutations in the DNA sequence? Select all that apply. a.Exposure of cells to ionizing radiation b.Failure of repair enzymes to recognize mismatched nucleotides before and during DNA replication c.Recognition of mismatched bases by repair enzymes before and during DNA replication d.Nucleotide errors occurring during DNA replicationarrow_forwardA student mixes various molecule needed for DNA replication. When he adds DNA, replication occurs, but each DNA duplex consists of a normal DNA strand paired with numerous segments of DNA a few hundred nucleotides long. What has been left out of the mixture? A. NTPs B. DNA polymerase III C. ATP D. DNA polymerase I E. DNA ligasearrow_forward
- Which statement about Okazaki fragments is true? Select one: a. DNA polymerase doesn’t need a primer to build these fragments b. They act as a primer that initiates DNA replication. c. They correct errors made during earlier phases of DNA replication. d. They are necessary because DNA polymerase can only build DNA in the 5’ to 3’ direction, so for one of the strands at each fork, the DNA polymerase can only buildaway from the fork. e. They prevent the ends of chromosomes from shortening with every replication.arrow_forwardWhat describes or designates the 3' end of a DNA strand? a. an available hydroxyl group on the 5th carbon of a deoxyribose of a terminal nucleotide b. an available phosphate group on the 3rd carbon of a deoxyribose of a terminal nucleotide c. an available hydroxyl group on the 3rd carbon of a deoxyribose of a terminal nucleotide d. an available hydroxyl group on the 2nd carbon of a deoxyribose of a terminal nucleotidearrow_forwardA biochemist isolates, purifies and combines ina test tube a variety of molecules needed for DNA replication. When she adds some DNA to the mixture, replication occurs, but each DNA molecule consists of a normal strand paired with numerous segments of DNA a few hundred nucleotides long. What has she probably left out of the mixture? a.DNA polymerase b. DNA ligase c. Okajaki fragments d. primasearrow_forward
- QUES Place the following enzymes in the correct order, in which they function in DNA replication: DNA polymerase Helicase Ligase Primase a. Helicase, Primase, DNA polymerase, Ligase b. Ligase, Helicase, Primase, DNA polymerase O c. Ligase, Primase, Helicase, DNA polymerase O d. Primase, Ligase, Helicase, DNA polymerasearrow_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_forwardHow would nucleotide excision repair be affected if one of the followingproteins was missing? Describe the condition of the DNAif the repair was attempted in the absence of the protein.A. UvrAB. UvrCC. UvrDD. DNA polymerasearrow_forward
- Nucleotide excision repair A. recognizes and repairs thymine dimers and other damaged bases in DNA B. corrects errors in nucleotide excision C. recognizes and removes mismatched bases after DNA synthesis is completed D. removes nucleotides that are incorrectly incorporated during DNA synthesisarrow_forwardWhat does it mean to say thhat extension by DNA polymerase III proceed 5'---3'? A. The 5' end of a DNA polymerase molecule attaches to the 3' end of primase. B. DNA polymerase adds nucleotides to a growing strand, moving in the 5' to 3' direction. C. DNA polymerase seals nicks as it moves along a DNA strand toward the 3' end. D. DNA polymerase can only synthesize DNA at the 5' end of an existing strand of DNA.arrow_forward3barrow_forward
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