Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 19, Problem 12TYK
The CRISPR-Cas system allows a bacterium to
- a. degrade DNA from viruses that it has previously been exposed to.
- b. degrade DNA from viruses that it has never been exposed to.
- c. prevent phages from entering the cell.
- d. prevent prophages from exiting the bacterial chromosome.
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Chapter 19 Solutions
Biology - Study Guide
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- A _______ is a molecule that can be used to carry a fragment of DNA into a host organism. a. cloning vector c. GMO b. chromosome d. cDNAarrow_forwardPart A: Antibiotic resistance is a major health concern. Resistance to various antibiotics can be transferred by a. all options. b. transduction. c. conjugation. d. transformation. Part B: Movement of genetic information through transduction requires that a. free DNA is available in the environment. b. physical contact occurs between cells. c. transposable elements occur in a chromosome. d. viruses have infected a cell.arrow_forwardChoose the phrase that best describes the role of a cloning vector. A) Separates fragments of DNA B) Detects the presence of specific DNA sample C) Isolates DNA from a donor organism D) Screens for recombinants that have been successfully transformed E) Introduces DNA into a cloning hostarrow_forward
- Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in: A) Recombinant DNA technology B) Monoclonal antibody production C) Stemcell culture D) DNA fingerprintingarrow_forwardThe CRISPR method is used in a.DNA sequencing. b.DNA fingerprinting. c.genome editing. d.the polymerase chain reaction.arrow_forwardWhat method allows researchers to make a large amount of human proteins in bacteria? Select one: a. Shot gun sequencing b. Sequencing c. Southern blotting d. Gene cloning e. CRISPRarrow_forward
- Explain how electrophoresis separates DNA strands. a. How is a DNA fingerprinting test interpreted? b. Define plasmid and how plasmids can change a bacteria’s activity. c. How do we digest/cleave plasmids? Explain the role of a restriction enzyme. d. Define sticky end and blunt end and which one is useful in molecular biology.arrow_forwardThe polymerase chain reaction (PCR) is important because it allows us to Group of answer choices a. insert eukaryotic genes into prokaryotic plasmids b. incorporate genes into viruses c. make DNA from RNA transcripts d. make many copies of a target segment of DNAarrow_forwardThe activity of restriction enzymes may produce fragments with sticky ends. Sticky ends are a) a type of endonucleases. b) dephosphorylated CpG islands. c) unpaired nucleotides. d) double breaks with blunt ends.arrow_forward
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