Brock Biology of Microorganisms, 14e (Madigan et al.)
Chapter 11Â Genetic Engineering and Biotechnology
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Multiple Choice Questions
1) If a foreign gene is cloned into an expression host, it is important that the host itself
- A) not produce the protein being studied.
- B) produce the protein in larger amounts than the vector.
- C) repress the genetic expression being studied.
- D) produce signal proteins to tag the host protein.
Answer:Â A
Bloom’s Taxonomy:Â Comprehension
Chapter Section:Â 11.9
2) Detecting a specific protein with an antibody is considered a(n) ________ method.
- A) selection
- B) screening
- C) isolation
- D) duplication
Answer:Â B
Bloom’s Taxonomy:Â Knowledge
Chapter Section:Â 11.4
3) To discover a catabolic gene cluster, cloning large sequences of approximately 40 kbp requires the utility of
- A) bacterial artificial chromosomes (BACs).
- B) cosmids or fosmids.
- C) a eukaryotic host to house the large foreign DNA.
- D) multiple gene fusions.
Answer:Â B
Bloom’s Taxonomy:Â Application
Chapter Section:Â 11.10
4) Expression vectors are designed to ensure that ________ can be efficiently ________.
- A) mRNA / transcribed
- B) DNA / transcribed
- C) mRNA / translated
- D) DNA / translated
Answer:Â A
Bloom’s Taxonomy:Â Comprehension
Chapter Section:Â 11.9
5) A(n) ________ gene is a gene that encodes a protein that is easy to detect and assay.
- A) encoder
- B) translational
- C) reporter
- D) recorder
Answer:Â C
Bloom’s Taxonomy:Â Knowledge
Chapter Section:Â 11.6
6) One of the more formidable obstacles to mammalian gene cloning is the presence of
- A) introns.
- B) exons.
- C) repressors.
- D) integrators.
Answer:Â A
Bloom’s Taxonomy:Â Knowledge
Chapter Section:Â 11.11
7) Which of the following is NOT a characteristic of a type II restriction endonuclease?
- A) cleavage product can be either blunt or sticky ended but is always the same for an individual enzyme
- B) recognizes a specific palindromic site for cleavage
- C) recognition site length varies among enzymes but is always the same for an individual enzyme
- D) unable to cleave methylated DNA
Answer:Â D
Bloom’s Taxonomy:Â Comprehension
Chapter Section:Â 11.1
8) What type of vector can replicate and be maintained stably in two (or more) unrelated host organisms?
- A) virus
- B) expression
- C) shuttle
- D) integrating
Answer:Â C
Bloom’s Taxonomy:Â Knowledge
Chapter Section:Â 11.9
9) The genes encoding luciferase, green fluorescent protein (GFP), and β-galactosidase are typically used in cloning as
- A) transcription regulators.
- B) global control genes.
- C) promoter sequences.
- D) reporter genes.
Answer:Â D
Bloom’s Taxonomy:Â Application
Chapter Section:Â 11.6
10) To verify a gene was cloned into a vector successfully, sequencing the vector as well as ________ are commonly performed.
- A) agarose gel electrophoresis
- B) fluorescence in situ hybridization
- C) protein purification
- D) northern blots
Answer:Â A
Bloom’s Taxonomy:Â Application
Chapter Section:Â 11.1
11) Which objective would be best to use a Southern blot rather than a Northern blot?
- A) Determine if a gene is present in a genome.
- B) Discover gene function.
- C) Identify regulatory gene-protein interactions.
- D) Quantify expression profiles of a gene.
Answer:Â A
Bloom’s Taxonomy:Â Application
Chapter Section:Â 11.2
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