Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 3TYK
Why are antibiotic resistance markers such as ampR important components of bacterial plasmid cloning vectors?
a. The plasmid must have resistance to accept DNA inserts.
b. They allow the detection of plasmids that contain an inserted DNA fragment.
c. They ensure the presence of the ori site.
d. They ensure that the plasmid can be cut by a restriction enzyme.
e. They allow identification of bacteria that have taken up a plasmid.
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You want to propagate large amounts of a DNA fragment. To do this, use a plasmid vector.
a) How should this plasmid vector be constructed?
b) Also describe the function of the components.
From where do we get primers for sequencing DNA?
A) they are synthesized by reverse transcriptase
B) they are cut out of plasmids using restriction endonucleases
C) DNA primase is added to the sequencing reaction and synthesizes the primers
D) biotechnology companies synthesize them using organic chemistry
A. A plasmid is shown with the locations of various restriction enzyme sites labeled. If you cut the plasmid with Xhol and Xbal, which lane of the agarose gel represents the DNA fragments you would expect from the digestion?
B. If you now decide to cut the plasmid with EcoRI, how many fragments will be produced and what will their sizes be?
C. When running DNA samples on agarose gel, an electric field is applied. Towards which electrode will the DNA migrate and why?
Chapter 18 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 18.1 - What features do restriction enzymes have in...Ch. 18.1 - Prob. 2SBCh. 18.1 - What information and materials are needed to...Ch. 18.2 - What is a transgenic organism?Ch. 18.2 - Prob. 2SBCh. 18.3 - What is a restriction fragment length polymorphism...Ch. 18.3 - Prob. 2SBCh. 18.3 - Prob. 3SBCh. 18 - Prob. 1TYKCh. 18 - Prob. 2TYK
Ch. 18 - Why are antibiotic resistance markers such as ampR...Ch. 18 - After a polymerase chain reaction (PCR), agarose...Ch. 18 - A cDNA and a cloned fragment of genomic DNA share...Ch. 18 - Prob. 6TYKCh. 18 - Which of the following is not true of somatic cell...Ch. 18 - Prob. 8TYKCh. 18 - Prob. 9TYKCh. 18 - Prob. 10TYKCh. 18 - Prob. 11TYKCh. 18 - Discuss Concepts A forensic scientist obtained a...Ch. 18 - 13. Suppose a biotechnology company has developed...Ch. 18 - Prob. 14TYKCh. 18 - You learned in the chapter that an STR locus is a...
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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 is the purpose of the low temperature step in the PCR reaction? a. To allow DNA polymerase to synthesize new DNA in the 3' to 5' direction b. To permanently deactivate DNA polymerase c. To allow primers to anneal to DNA templates d. To allow DNA polymerase to synthesize new DNA in the 5' to 3' directionarrow_forwardIf you knew the sequence of a gene in one organism, how could you determine if another organism had a similar gene? A. insert the known gene into a vector and use the vector to insert the known gene into the other organism B. treat the genomes of both organisms with the same restriction enzyme and compare the patterns of the bands produced with gel electrophoresis C. create a hybrid of the two organisms by breeding them and check for mutations D. create labeled DNA probes from the known gene and use them to search the genome of the other organismarrow_forwarda) what are restriction enzymes? b) What is the main function of restriction enzymes in nature? c) Compare and contrast the these enzymes in nature and in scientific research.arrow_forward
- Describe how restriction enzymes like EcoR1 are used to create recombinant plasmids and what the process is for using these plasmids to replicate a piece of target DNA. Include information about how to create sticky ends, the makeup of the bacterial plasmid and how to tell if the gene was successfully inserted in the plasmid and if the plasmid has been transformed by the bacteria. You may use a drawing to enhance your description.arrow_forwardWhat is the most logical sequence of steps for splicing foreign DNA into a plasmid and inserting the plasmid into bacterium?I) Transform bacteria with recombinant DNA molecule.II) Cut the plasmid DNA using restriction enzymes.III) Extract plasmid DNA from bacterial cells.IV) Hydrogen-bond the plasmid DNA to non-plasmid DNA fragments.V) Use ligase to seal plasmid DNA to non-plasmid DNA A. III, II, IV, V, I B. I, II, IV, III, V C. III, IV, V, I, II D. II, III, V, IV, Iarrow_forwardUsing nucleotide letters, show the kind of cut that could be made on a DNA molecule to circularize it into a plasmid.What are restriction length polymorphisms, and how are they used?arrow_forward
- Cloning Genes Is a Multistep Process In cloning human DNA, why is it necessary to insert the DNA into a vector such as a bacterial plasmid?arrow_forwardWhat carries a gene from one organism into a bacteria cell? a. a plasmid b. an electrophoresis gel c. a restriction enzyme d. polymerase chain reactionarrow_forward(A) After three cycles of PCR, how many DNA molecules are present that correspond precisely to the desired amplification product? (B) What about after 5 cycles. Assume that we started with one molecule in each case, and that the reaction is perfectly efficient.arrow_forward
- What is a cloning vector? A. The DNA probe used to locate a particular gene in the genome. B. An agent such as plasmid, used to transfer DNA from an in vitro solution into a living cell. C. The laboratory apparatus used to clone genes. D. An enzyme that cuts DNA into restriction fragments.arrow_forwardExplain how you would utilize the lacZ gene in your plasmid to confirm successful recombinantcloning.arrow_forwardIn the formation of recombinant DNA, a restriction endonuclease cuts a bacterial plasmid to give sticky ends. The DNA segments that are to be added to the plasmid are cleaved with the same restriction endonuclease. What aresticky ends and why is it important that the target DNA and the plasmid it will be incorporated into have complementary sticky ends?arrow_forward
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