Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 14, Problem 15RQ
A scientist randomly mutates the DNA of a bacterium. She then sequences the bacterium’s daughter cells, and finds that the daughters have many errors in their replicated DNA. The parent bacterium likely acquired a mutation in which enzyme?
- DNA ligase
- DNA pol II
- Primase
- DNA pol I
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A scientist randomly mutates the DNA of a bacterium. She then sequences the bacterium’s daughter cells, and finds that the daughters have many errors in their replicated DNA. The parent bacterium likely acquired a mutation in which enzyme? a. DNA ligase b. DNA pol II c. Primase d. DNA pol I
Which DNA polymerase in prokaryotes is involved in the replacement of primers with deoxynucleotides?
a.DNA-Pol I
b.DNA-Pol II
c.DNA-Pol Ill
d.DNA-Pol IV
Recombinant DNA is:(a) DNA that is produced when genes from one kind oforganism are introduced by lateral transfer into the ge-nome of another kind of organism(b) DNA that is destroyed by endonucleases(c) DNA amplified by the polymerase chain reaction(d) DNA that is rich in the nitrogenous base guanine(e) All of the above
Chapter 14 Solutions
Biology 2e
Ch. 14 - Figure 14.10 In eukaryotic cells, DNA and RNA...Ch. 14 - Figure 14.14 You isolate a cell strain in which...Ch. 14 - Figure 14.21 A fr am eshift mutation that results...Ch. 14 - If DNA of a particular species was analyzed and it...Ch. 14 - The experiments by Hershey and Chase helped...Ch. 14 - Bacterial transformation is a major concern in...Ch. 14 - DNA double helix does not have which of the...Ch. 14 - In eukaryotes, what is the DNA wrapped around?...Ch. 14 - Meselson and Stahl's experiments proved that DNA...Ch. 14 - If the sequence of the 5'-3' strand is AATGCTAC,...
Ch. 14 - How did Meselson and Stahl support Watson and...Ch. 14 - Which of the following components is not involved...Ch. 14 - Which of the following does the enzyme primase...Ch. 14 - In which direction does DNA replication take...Ch. 14 - A scientist randomly mutates the DNA of a...Ch. 14 - The ends of the linear chromosomes are maintained...Ch. 14 - Which of the following is not a true statement...Ch. 14 - During proofreading, which of the following...Ch. 14 - The initial mechanism for repairing nucleotide...Ch. 14 - A scientist creates fruit fly larvae with a...Ch. 14 - Explain Griffith's transformation experiments What...Ch. 14 - Why were radioactive sulfur and phosphorous used...Ch. 14 - When Chargaffwas performing his experiments, the...Ch. 14 - Provide a brief summary of the Sanger sequencing...Ch. 14 - Describe the structure and complementary base...Ch. 14 - Prokaryotes have a single circular chromosome...Ch. 14 - How did the scientific community learn that DNA...Ch. 14 - Imagine the Meselson and Stahl experiments had...Ch. 14 - DNA replication is bidirectional and...Ch. 14 - What are Okazaki fragments and how they are...Ch. 14 - If the rate of replication in a particular...Ch. 14 - Explain the events taking place at the replication...Ch. 14 - What is the role of a primer in DNA replication?...Ch. 14 - Quinolone antibiotics treat bacterial infections...Ch. 14 - How do the linear chromosomes in eukaryotes ensure...Ch. 14 - What is the consequence of mutation of a mismatch...Ch. 14 - An adult with a history of tanning has his genome...
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- Match the terms appropriately. ___ nucleotide ___ clone a. nitrogen-containing base, sugar, phosphate groups ___ autosome b. copy of an organism ___ DNA polymerase c. does not determine sex ___ mutation d. injects DNA ___ bacteriophage e. replication enzyme ___ semiconservative replication f. can cause cancer g. something old, something new ___ DNA ligase h. seals gaps and breaksarrow_forwardDNA replicates by which of the following models? a. conservative b. semiconservative c. dispersive d. none of the abovearrow_forwardWhich of the following is a mismatch? A. Polymerase – Taq polymerase B. Template – double-stranded DNA C. Primer – oligonucleotide D. Synthesis – 5’ to 3’ directionarrow_forward
- cDNA, a term used in recombinant DNA technology meansa) Competitive DNAb) Chemical DNAc) Complex DNAd) Complementary DNAarrow_forwardWhich of the following statements about DNA probes are false? a. Probes can be labeled with a fluorescent dye to facilitate detection. b. Probes can be labeled with radioactive phosphorus to facilitate detection. c. Probes are typically composed of double stranded pieces of DNA. d. Probes are typically composed of single stranded pieces of DNA.arrow_forwardThe strand of DNA that is replicated continuously in the 5' to 3' direction is referred to as: Question 11 options: The lagging strand The template strand The leading strand The leaping strandarrow_forward
- In a PCR reaction, a few seconds at high temperature disrupts the ____ that hold the two strands of DNA together, so every molecule of DNA unwinds and becomes single-stranded. DNA ligases covalent bonds peptide bonds hydrogen bonds lipoproteinsarrow_forwardIn DNA replication, the enzyme helicase breaks hydrogen bonds between complementary nucleotides and causes the double-stranded DNA to become single-stranded (denatures the DNA). What is used in PCR to break the hydrogen bonds between complementary nucleotides? A) buffers B) DNases C) taq Polymerase D) heat E) helicasearrow_forwardWhich enzyme starts at an RNA primer and elongates the new DNA strand? DNA primase DNA polymerase III RNA polymerase DNA ligase DNA polymerase Iarrow_forward
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