CAMPBELL BIOLOGY-EBOOK
CAMPBELL BIOLOGY-EBOOK
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ISBN: 9780134443959
Author: Urry
Publisher: PEARSON
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Chapter 20, Problem 2TYU

Which of the following tools of DNA technology is incorrectly paired with its use?

(A) electrophoresis—Separation of DNA fragments

(B) DNA ligase—cutting DNA, creating sticky ends of rcstric- tion fragments

(C) DNA polymerase—polvrnerase chain reaction to amplify Sections of DNA

(D) reverse transcriptase—production of cDNA from mRNA

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Which of the following statements about gel electrophoresis is false? Choose all the answers that would apply -Smaller DNA fragments travel faster and further during gel electrophoresis. -DNA fragments can be separated based on fragment length. -DNA fragments can be separated based on DNA sequence. -Larger DNA fragments travel faster and further during gel electrophoresis.
What implication does eating DNA  have on the commercial properties of DNA in your hair conditioner, nutritional supplements, skin cream, or genetically modified plants and animals?
Which of the comparisons between DNA polymerase and RNA polymerase is false? -Both DNA polymerase and RNA polymerase have proofreading activity. -DNA polymerase requires an additional enzyme to unwind double-stranded DNA molecules, but RNA polymerase does not. -Both DNA and RNA polymerase catalyze the addition of nucleotides to the 3’ end. -DNA polymerase needs a free 3’-OH to begin the polymerization reaction, but RNA polymerase does not.
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