Essentials Of Genetics (9th Global Edition)
9th Edition
ISBN: 9780134143637
Author: William S. Klug, Michael R. Cummings
Publisher: Pearson Global Edition
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Chapter 17, Problem 1PDQ
HOW DO WE KNOW?
In this chapter we focused on how specific DNA sequences can be copied, identified, characterized, and sequenced. At the same time, we found many opportunities to consider the methods and reasoning underlying these techniques. From the explanations given in the chapter, what answers would you propose to the following fundamental questions?
(a) In a recombinant DNA cloning experiment, how can we determine whether DNA fragments of interest have been incorporated into plasmids and, once host cells are transformed, which cells contain recombinant DNA?
(b) When using DNA libraries to clone genes, what combination of techniques are used to identify a particular gene of interest?
(c) What steps make PCR a chain reaction that can produce millions of copies of a specific DNA molecule in a matter of hours without using host cells?
(d) How has DNA sequencing technology evolved in response to the emerging needs of genome scientists?
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Chapter 17 Solutions
Essentials Of Genetics (9th Global Edition)
Ch. 17 -
CASE STUDY |Should we worry about recombinant DNA...Ch. 17 - Prob. 2CSCh. 17 - Prob. 3CSCh. 17 -
HOW DO WE KNOW?
1. In this chapter we focused on...Ch. 17 - Prob. 2PDQCh. 17 - What roles do restriction enzymes, vectors, and...Ch. 17 - Prob. 4PDQCh. 17 - Prob. 5PDQCh. 17 - Prob. 6PDQCh. 17 - Prob. 7PDQ
Ch. 17 - List the advantages and disadvantages of using...Ch. 17 - What are the advantages of using a restriction...Ch. 17 - The introduction of genes into plants is a common...Ch. 17 - Prob. 11PDQCh. 17 - Prob. 12PDQCh. 17 - Prob. 13PDQCh. 17 - What advantages do cDNA libraries provide over...Ch. 17 - Prob. 15PDQCh. 17 -
16. List the steps involved in screening a...Ch. 17 -
17. In a typical PCR reaction, describe what is...Ch. 17 -
18. We usually think of enzymes as being most...Ch. 17 - How are dideoxynucleotides (ddNTPs) structurally...Ch. 17 - Prob. 20PDQCh. 17 - One complication of making a transgenic animal is...Ch. 17 -
22. When disrupting a mouse gene by knockout, why...Ch. 17 - Prob. 23PDQ
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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 enzymatic features of DNA polymerase prevent it from replicating one of the DNA strands at the ends of linear chromosomes? Compared with DNA polymerase, how is telomerase different in its ability to synthesize a DNA strand? What does telomerase use as its template for the synthesis of a DNA strand? How does the use of this template result in a telomere sequence that is tandemly repetitive?arrow_forwardWhat are some important safety and ethical issues raised by this use of recombinant DNA technology?arrow_forwardList the advantages and disadvantages of using plasmids as cloning vectors. What advantages do BACs and YACs provide over plasmids as cloning vectors?arrow_forward
- Your graduate advisor asks you to amplify the following sequence of DNA by PCR: 5’-ATACGCATTCGGACCAGGTCCTAA-3’ 3’-TATGCGTAAGCCTGGTCCAGGATT-5’ a. To ensure that the entire sequence above is amplified, what 6-nucleotide DNA primers should you add to your PCR mix? You order the primers listed above, but instead receive the following set of primers: 5’-CGCATT-3’ 5’-GGACCT-3’ b. What portion of the double stranded DNA molecule will be amplified after 10 rounds of PCR? Your labmate attempts to rescue your PCR reaction by providing you with the following set of primers: 5’-ATACGC-3’ 5’-TCCTAA-3’ c. What is the result of running the PCR reaction with your labmate’s primers? How many double stranded molecules of DNA will result from 10 rounds of amplification?arrow_forwardWhat are sticky ends? What is their importance in recombinant DNA technology?arrow_forwardWill you please help me in understanding these? How many fragments will be formed after digestion in sample C, if the plasmid is circular and why? What are the critical steps in transformation? How was RAD52 expression observed? Provide current applications of DNA Technologyarrow_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_forwardA PCR reaction was performed to amplify the XULA3 gene, which is bp 882-5,364 on a plasmid that is 11,719 bp. After the PCR, the product was digested with XhoI. There are XhoI sites on the plasmid at bp 1,434, 4,655, and 7,368. Calculate the size(s) that would result when the product is digested with XhoI. Then enter the size of the largest fragment (in bp).arrow_forwardYou are performing an experiment using CRISPR-cas9 to genetically modify the LacZ gene of a culture of E. coli. After you run the experiment, you decide to use gel electrophoresis to genotype the different bacterial cultures to determine if the gene editing was successful. How could your electrophoresis results confirm that the PCR was successful? And how could your electrophoresis results confirm that you successfully extracted genomic DNA from your bacterial samples?arrow_forward
- What are the essential elements of a plasmid cloning vector? Discuss the importance of each element for dna cloning.arrow_forwardWhy is ligase needed to make recombinant DNA? Whatwould be the immediate consequence in the cloning process if someone forgot to add it?arrow_forward"Plasmids are still the workhorses for many applicationsof recombinant DNA technology". Define the importance of this line ?arrow_forward
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