Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 12, Problem 3TYU
In the Hershey-Chase experiment with bacteriophages, (a) harmless bacterial cells permanently transformed into virulent cells (b) DNA was shown to be the transforming factor of earlier bacterial transformation experiments (c) the replication of DNA was conclusively shown to be semiconservative (d) viral DNA was shown to enter bacterial cells and cause the production of new viruses within the bacteria (e) viruses injected their proteins, not their DNA, into bacterial cells
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Chapter 12 Solutions
Biology (MindTap Course List)
Ch. 12.1 - Summarize the evidence that accumulated during the...Ch. 12.1 - Prob. 2LOCh. 12.1 - Prob. 1CCh. 12.1 - Prob. 2CCh. 12.2 - Explain how nucleotide subunits link to form a...Ch. 12.2 - Describe how the two strands of DNA are oriented...Ch. 12.2 - Prob. 5LOCh. 12.2 - Prob. 1CCh. 12.2 - Prob. 2CCh. 12.2 - Prob. 3C
Ch. 12.3 - Cite evidence from Meselson and Stahls experiment...Ch. 12.3 - Prob. 7LOCh. 12.3 - Explain the complexities of DNA replication that...Ch. 12.3 - Discuss how enzymes proofread and repair errors in...Ch. 12.3 - Prob. 10LOCh. 12.3 - How did the ability to distinguish old and newly...Ch. 12.3 - What feature of DNA structure causes DNA...Ch. 12.3 - What is the reason that eukaryotic cells require...Ch. 12 - When Griffith injected mice with a combination of...Ch. 12 - Which of the following inspired Avery and his...Ch. 12 - In the Hershey-Chase experiment with...Ch. 12 - The two complementary strands of the DNA double...Ch. 12 - If a segment of DNA is 5 CATTAC 3, the...Ch. 12 - Each DNA strand has a backbone that consists of...Ch. 12 - The experiments in which Meselson and Stahl grew...Ch. 12 - The statement DNA replicates by a semiconservative...Ch. 12 - Topoisomerases (a) synthesize DNA (b) synthesize...Ch. 12 - A lagging strand forms by (a) joining primers (b)...Ch. 12 - The immediate source of energy for DNA replication...Ch. 12 - Which of the following statements about eukaryotic...Ch. 12 - Prob. 13TYUCh. 12 - Prob. 14TYUCh. 12 - Prob. 15TYUCh. 12 - INTERPRET DATA In the Hershey-Chase experiment,...Ch. 12 - EVOLUTION LINK How does DNA being the universal...
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- Chemical mutagens often cause oxidation or deamination of DNA bases. This can lead to cancer by causing: A) Activation of replication. B) Activation of transcription. C) Non Watson-Crick base pairing. OD) Changes to cytochrome P450 enzymes. OE) Activation of translation.arrow_forwardWhich of the following statements best explains why there are fewer colonies on plate IV than on plate III? (a) Plate IV is the positive control. (b) Not all bacterial cells were successfully transformed. (c) The bacteria on plate III did not mutate. (d) The plasmid inhibited bacterial growth. (e) Plate IV is the negative control.arrow_forwardCommon vectors used to transfer a piece of DNA into a cloning host are ________. A) artificial chromosomes B) bacteriophages C) All of the choices are correct D) viruses E) plasmidsarrow_forward
- You discover an E. coli mutant that has a non-functional DNA polymerase III. Such a bactèria; a) Would not be able to synthesize new strands of DNA b) Would not be able synthesize the leading strand of DNA Oc) Would produce new strands of DNA still containing short RNA primers Od) Would be able to synthesize the lagging strand of DNA onlyarrow_forwardThe Drug AZT is used to treat AIDS, This drug is a _____ Inhibitor/Activator of _____ a) Competitive; Activator; DNA polymerase b) Noncompetitive; Inhibitor; DNA polymerase c) Competitive; Inhibitor; Reverse Transcriptase d) Noncompetitive; Activator; Reverse Transcriptasearrow_forward11 Enzyme assay A) Always involves asking a substrate B) Can be very smoke or very complex C) Always involves ultraviolet light D) A-C are incorrect 12 Isolation of chromosomal (total) DNA using a spin column A) Involves a filtration step to remove many different molecules B) Lysis is an optional step C) Elution is not necessary D) Results in a very pure protein preparation 13 Isolation of chromosomal (total) DNA using a spin column A) Cells must be used using an appropriate method B) Cell lysis is required C) Elution of DNA required regardless of the cell type used in the experiment D) A-C are correct. 14 Isolation of chromosomal (total) DNA using a spin column A) Washing the spin column is optional B) DNA must be eluted from the spin column C) Does not involve centrifugation D) Only molecules that are supposed to bind to the column do so.arrow_forward
- Synthesis of new bacteriophages in a bacterial host involves the use of a.) Host cell encoded proteins only b.)Virally encoded proteins only c.) Both host and virally encoded proteinsarrow_forwardThe polymerase chain reaction uses Taq polymerase rather than a DNA polymerase from E. coli, because Taq polymerasea) introduces fewer errors during DNA synthesis.b) is heat-stable.c) can initiate DNA synthesis at a wider variety of sequences.d) can denature a double-stranded DNA template.e) is easier to obtain.arrow_forwardRecombinant DNA molecule is produced by ligatinga) Two DNA segmentsb) Two m-RNA moleculesc) One m-RNA with one t-RNAd) One m-RNA with DNA segmentarrow_forward
- Following are four processes common to most cloning experiments: a) transforming bacteria b) plating bacteria on selective medium c) cutting DNA with restriction endonucleases d) ligating DNA fragments Place components of this list in the order in which they would most likely occur during a cloning experiment.arrow_forwardWhich replication enzyme(s) is/are responsible for synthesizing new DNA components: A) Ligase B) DNA Polymerase C) RNA Polymerase D) Ligase & DNA Polymerase E) RNA Polymerase & DNA Polymerase F) None of these.arrow_forwarda) enzymes are used to assemble an insulin gene, which is then attached to bacterial DNA. b) bacterial DNA is cut from a human DNA strand and inserted into a human cell to form an insulin gene. c) the insulin gene is cut out of a human DNA strand using an enzyme and inserted into bacterial DNA, thereby enabling the bacteria to produce a human protein. d) a gene is deleted from bacterial DNA to produce an insulin gene, which is then inserted into human DNA.arrow_forward
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