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 7PDQ
Summary Introduction
To review:
The advantages of palindromic restriction sites in the DNA (deoxyribonucleic acid) strand.
Introduction:
Recombinant DNA technology (RDT) creates a combination of DNA segments by cutting and joining of DNA molecule from different sources. RDT is used to clone a small segment of DNA called DNA of interest. These small DNA segments are inserted into the vector for amplification of DNA molecule. DNA insert, vectors, DNA ligase, restriction enzymes, phosphatases or kinases, and host cell are the tools, which are involved in RDT. DNA strand is cleaved at the sugar-phosphate back bone by restriction enzymes.
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Restriction sites are palindromic; that is, they read the same in the5' to 3' direction on each strand of DNA. What is the advantage ofhaving restriction sites organized this way?
If restriction endonucleases are produced by bacteria within a host, why don’t these enzymes chew up the genomic DNA of their host? What is the role of DNA methyltransferase in this?
If restriction endonucleases are produced by bacteria within a host, why don’t these enzymes chew up the genomic DNA of their host? What is the role of DNA methyltransferase in this? Indicate the answer
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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- The gene you are asked to clone is 30,000 bps in length. When you are choosing a suitable Restriction Endonuclease, what criteria about the enzyme can you deduce from the gene length?arrow_forwardWhat is a restriction digest? What does it mean if you were given a precut DNA?arrow_forwardWhy do restriction endonucleases not hydrolyze DNA from the organism that produces it?arrow_forward
- What are palindromes, and how are they related to restriction endonucleases? Why are they useful for inserting one piece of DNA into another?arrow_forwardIn making recombinant DNA, what is the benefit of using a restriction enzyme that cuts DNA in a staggered fashion?arrow_forwardFor a restriction enzyme that recognizes the restriction site GGCC, Which of the following statements is/are true?arrow_forward
- A 2.0kb bacterial plasmid ‘BS1030’ is digested with the restriction endonuclease Sau3A; the plasmid map is depicted in the diagram below and the Sau3A (S) restriction sites are indicated. Which of the following DNA fragments do you expect to see on an agarose gel when you run Sau3A-digested plasmid ‘BS1030’ DNA? a. 250 bp, 450 bp, 550 bp, 1.1 kb, 1.5 kb and 2.0 kb b. 2.0kb c. 250 bp, 400 bp, 450 bp, 500 bp and 550 bp d. 100 bp, 200 bp, 250 bp, 400 bp, 500 bp and 550 bparrow_forwardSome restriction endonucleases produce blunt-ended pieces of DNA, while other produce DNA fragments with sticky ends. What is the difference? What type of ends do AatII and DraI produce?arrow_forwardtrue or false if a restriction enzyme recognizes the restriction site, 5' AACGTT3', and the enzyme cuts between the second A and the C, this will produce a "sticky end," which is useful for cloning into a plasmid vector.arrow_forward
- Do restriction enzymes always cut the DNA at the recognition sequence?arrow_forwardWhen circular DNA is sequenced, the nucleotide base pairs are numbered starting from a fixed position on the DNA, all the way around, usually in a clockwise manner. a DNA molecule that is 3133 base pairs long is digested with RsaI restriction enzyme recognition sites at base numbers 366, 1534, and 2207. What are the sizes of the DNA fragments that will be produced after the DNA is digested with RsaI?arrow_forwardA microbiologist discovers a new type II restriction endonuclease. When DNA is digested by this enzyme, fragments that average 1,048,500 bp in length are produced. What is the most likely number of base pairs in the recognition sequence of this enzyme?arrow_forward
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