BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
Author: BROOKER
Publisher: MCG
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Chapter 21.1, Problem 1CC
Summary Introduction
To determine: The purpose of the lacZ gene in the vector in the cloning experiment.
Introduction: Genomics contains an important technique by which multiple and exact copies of a gene can be produced. This technique is known as gene cloning. This method requires certain agents such as plasmids and viruses for the successful production of multiple genes from a specific gene. These are known as vectors. Vectors carry the gene of interest in the host cell and thus, help in gene cloning.
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This is a diagram showing..?
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plasmid
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normal bacterial cell division
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mRNA
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Preforming a "blue-white screen"
3) Would bacteria that have taken up a plasmid into which a DNA fragment has been inserted, form a blue colony or a white colony when grown on this medium? Briefly explain why these bacteria would form a colony of the color you chose.
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Chapter 21 Solutions
BIOLOGY (LL)
Ch. 21.1 - Prob. 1CSCh. 21.1 - Prob. 1CCCh. 21.1 - Prob. 2CCCh. 21.1 - Prob. 3CCCh. 21.2 - Prob. 1CCCh. 21.2 - Prob. 2CCCh. 21.2 - Prob. 3CCCh. 21.3 - Prob. 1EQCh. 21.3 - Prob. 2EQCh. 21.3 - Prob. 3EQ
Ch. 21.4 - Prob. 1CCCh. 21.4 - Prob. 1CSCh. 21.5 - Prob. 1CSCh. 21.5 - Repetitive Sequences and Transposable Elements...Ch. 21 - Prob. 1TYCh. 21 - DNA ligase is needed in a cloning experiment a. to...Ch. 21 - Prob. 3TYCh. 21 - Why is Taq polymerase used in PCR rather than...Ch. 21 - Lets suppose you want to clone a gene that has...Ch. 21 - In the CRISPR-Cas technology for editing genes,...Ch. 21 - Prob. 7TYCh. 21 - The enzyme that helps short segments of DNA move...Ch. 21 - Prob. 9TYCh. 21 - Which of the following was not a goal of the Human...Ch. 21 - Prob. 1CQCh. 21 - Briefly describe whether or not each of the...Ch. 21 - Prob. 3CQCh. 21 - Identify and discuss three important advances that...Ch. 21 - Prob. 2COQ
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- gene. If the JM109 strain is transformed by the PBKSK plasmid, the strain will produce the B-galactosidase (from the lac gene) and will hydrolyze X-gal to produce the blue compound. Therefore, colonies that were transformed and contain the pBSKS wil you appear blue. IPTG & X-Gal & NO colonies Amp E. coli JM109 E. coli JM109 50 mM calcium chloride-15% glycerol lac lac lac IPTG & I Recovery X-Gal solution at -702C PBSKS White colonies E. coli JM109 E. coli JM109 ampR amp I amp lac lac Heat Shock Non-transformed 42°C E. coli JM109 E. coli JM109 amps amps lac lac IPTG & X-Gal lac I Recovery lac PBSKS BLUE colonies PBSKS ampRI (amp Transformed IPTG & X-Gal & BLUE colonies Amp Hypotheses: Circle the correct answer 1. If PBSKS is transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin. a. Why? _ 2. If PBSKS is transformed into JM109 cells, colonies in media with IPTG (will/will not) induce the production the B- galactosidase enzyme. a. Why?_ 3. If…arrow_forward19. Which of the following statements is true for tumor inducing plasmids? Group of answer choices This plasmid can induce tumors in all plants The tumor kills the host organism soon after induction Their use provides an efficient method for expressing a eukaryotic gene in a prokaryote This plasmid comes from a eukaryotic organism The plasmid has a region used to produce opines where new genetic information can be addedarrow_forward. A second feature that virtually all plasmid vectors havein common is the selectable marker. Explain what this isand why it is such an important feature.arrow_forward
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