BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 14, Problem 7A
The synthesis of telomeres
a. uses DNA polymerase, but without the sliding clamp.
b. uses enzymes involved in DNA repair.
c. requires telomerase, which does not use a template.
d. requires telomerase, which uses an internal RNA as a template.
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The function of a restriction enzyme is to
a. prevent the movement of DNA outside the nucleus
b. separate the DNA double helix
c. cut the nucleotide sequence at a specific location in DNA
d. proofread DNA for accidental damages and corrects these errors
To synthesize DNA, what does telomerase use as a template?
a. It uses the DNA in the 3′ overhang region.
b. It uses RNA that is a component of telomerase.
c. No template is used.
d. Both a and b are correct.
Base analogs are mutagenic because of which characteristic?
a. They produce changes in DNA polymerase that cause it to malfunction.
b. They distort the structure of DNA.
c. They are similar in structure to the normal bases.
d. They chemically modify the normal bases.
Chapter 14 Solutions
BIOLOGY
Ch. 14.1 - Describe the experiments of Griffith and Avery.Ch. 14.1 - Evaluate the evidence for DNA as genetic material.Ch. 14.2 - Explain how the WatsonCrick structure rationalized...Ch. 14.2 - Prob. 2LOCh. 14.3 - Prob. 1LOCh. 14.3 - Prob. 2LOCh. 14.4 - Prob. 1LOCh. 14.4 - Prob. 2LOCh. 14.4 - Diagram the functions found at the replication...Ch. 14.5 - Compare eukaryotic replication with prokaryotic.
Ch. 14.5 - Prob. 2LOCh. 14.5 - Prob. 3LOCh. 14.6 - Prob. 1LOCh. 14.6 - Prob. 2LOCh. 14 - Prob. 1DACh. 14 - Prob. 2DACh. 14 - Prob. 1IQCh. 14 - Prob. 2IQCh. 14 - How does the structure of eukaryotic genomes...Ch. 14 - Prob. 4IQCh. 14 - Prob. 1UCh. 14 - Which of the following is NOT a component of DNA?...Ch. 14 - Chargaff studied the composition of DNA from...Ch. 14 - The bonds that hold two complementary strands of...Ch. 14 - Prob. 5UCh. 14 - Prob. 6UCh. 14 - Which of the following is NOT pan of the...Ch. 14 - If one strand of a DNA is 5 ATCGTTAAGCGAGTCA 3,...Ch. 14 - Hershey and Chase used radioactive phosphorus and...Ch. 14 - The Meselson and Stahl experiment used a density...Ch. 14 - Prob. 4ACh. 14 - If the activity of DNA ligase was removed from...Ch. 14 - Successful DNA synthesis requires all of the...Ch. 14 - The synthesis of telomeres a. uses DNA polymerase,...Ch. 14 - When mutations that affected DNA replication were...Ch. 14 - Prob. 1SCh. 14 - In the Meselson-Stahl experiment, a control...Ch. 14 - Enzyme function is critically important for the...
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- 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.arrow_forwardExplain how electrophoresis separates DNA strands. a. How is a DNA fingerprinting test interpreted? b. Define plasmid and how plasmids can change a bacteria’s activity. c. How do we digest/cleave plasmids? Explain the role of a restriction enzyme. d. Define sticky end and blunt end and which one is useful in molecular biology.arrow_forwardArrange the following steps in the sequence they would happen in a DNA cloning experiment. a. sealing DNA fragments into vectors with DNA ligase; b. utilizing a probe to detect a clone in the library; c. sequencing the clone's DNA; d. creating a DNA library of clones; e. cutting genomic DNA with restriction enzymes. A. e,a,d,b,c B. a,d,b,c,e C. c,b,e,a,d D. e,d,a,c,barrow_forward
- Which of the following statements describe reversal of DNA repair mechanism. A. UV light blocks the translation of mRNA beyond the damaged area B. Reversal of DNA repair mechanism requires a DNA template C. UV light is needed to initiate the formation of pyrimidine dimers D. None of the statement is correctarrow_forwardWould it be possible to start synthesizing the daughter DNA strand without assembling the RNA primer first? Why? Why not? A. Yes, because the 3' OH is already present in the DNA strand which will be used as a template. B. No, because the RNA primer which contains the free 5' PO4 in its ribose will not be synthesized by primase. C. Yes, because the 5' PO4 is already present in the DNA strand which will be used as a template. D. No, because the RNA primer which contains the free 3' OH in its ribose has to be synthesized by primase first.arrow_forwardRestriction enzymes found in bacterial cells are ordinarily useda. during DNA replication.b. to degrade the bacterial cell’s DNA.c. to degrade viral DNA that enters the cell.d. to attach pieces of DNA together.arrow_forward
- What is the function of resolvase in recombination? a. It unwinds double-stranded DNA. b. It allows a single DNA strand to invade a DNA helix. c. It displaces one of the original DNA strands during branch migration. d. It cleaves the Holliday structure.arrow_forwardPlace the steps of sanger sequencing in order.A. A fluorescent laser excites the fragments and records the wavelength consistent with a single nucleotide. B. ddNTPs bind and stop chain extension.C. DNA fragments are separated by size through a capillary tube. D. DNA polymerase copies the target region of template DNA.E. The final nucleotide of each fragment is labeled with a fluorescent tag.arrow_forwardIn nucleotide excision repair in E. coli, the function of the UvrA/UvrB complex is toa. detect DNA damage.b. make cuts on both sides of the damage.c. remove the damaged piece of DNA.d. replace the damaged DNA with undamaged DNA.arrow_forward
- Match the E. coli mismatch repair enzyme on the left with the appropriate function on the right. MutS MutH MutL a. facilitates the looping of the region of DNA to be replaced b. distinguish between parental and newly-synthesized DNA c. locates mismatches in the DNAarrow_forwardPolymerase Chain Reaction, or PCR, can Group of answer choices A. target a specific region of DNA and cut it out of the rest of the genetic material for further analysis. B. copy the number of copies of a selected region of DNA linearly. C. increase the number of copies of a selected region of DNA exponentially. D. copy the entire genome at least a dozen times.arrow_forwardWhat specifically will happen if DNA polymerase is inaccurate during DNA synthesis? Explain how this inaccuracy might affect the organism.arrow_forward
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