M5_ Molbio
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Science
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University
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Practice Problem
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Michaella Sayo
Used 5+ times
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90 Slides • 26 Questions
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Multiple Choice
Which of the following is a primary role of genetic engineering as discussed in the context of recombinant DNA technology?
To manipulate DNA experimentally for new traits
To observe natural DNA without modification
To prevent any changes in genetic material
To only study ancient DNA samples
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Open Ended
Why is recombinant DNA technology considered significant in the field of molecular biology?
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Multiple Choice
Which of the following is NOT a use of recombinant DNA technology?
Science
Medicine
Agriculture
Transportation
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Open Ended
Explain how recombinant DNA (rDNA) differs from naturally occurring DNA sequences.
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Multiple Select
Which steps are involved in the process of making recombinant DNA?
Isolation of DNA
Cutting DNA with restriction enzymes
Insertion of foreign DNA into a vector
DNA replication in the host organism
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Fill in the Blanks
The first recombinant DNA was created in
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Open Ended
Arrange the following steps of rDNA technology in the correct order: Isolation of Genetic Material, Amplification Using PCR, Restriction Enzyme Digestion, Ligation of DNA Molecules, Insertion Into Host, Isolation of Recombinant Cells.
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Multiple Select
Which enzymes are used in the isolation of genetic material during rDNA technology?
Lysozyme
Cellulase
Chitinase
Polymerase
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Multiple Choice
Which step in the recombinant DNA process involves the use of molecular scissors to cut DNA at specific sequences?
Restriction enzyme digestion
Gel electrophoresis
Amplification using PCR
Ligation of DNA molecules
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Open Ended
Explain how agarose gel electrophoresis helps in identifying DNA fragments after restriction enzyme digestion.
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Multiple Select
Which of the following are essential components required for PCR amplification?
Template DNA
DNA ligase
Primers
DNA polymerase
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Fill in the Blanks
DNA ligase joins DNA fragments to form
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Open Ended
Describe the process by which recombinant DNA is introduced into a host cell and how host cells are made competent.
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Multiple Choice
What is the role of marker genes in the isolation of recombinant cells, and how does the pBR322 plasmid facilitate this process?
Marker genes help identify successful recombinants
Marker genes increase transformation efficiency
Marker genes prevent contamination
Marker genes replicate independently
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Multiple Choice
Which of the following is NOT an application of recombinant DNA technology?
Production of therapeutic proteins
Development of genetically modified crops
Vaccine production
Antibiotic resistance in bacteria
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Multiple Select
Which statements about restriction enzymes are correct?
They are naturally occurring enzymes from bacteria and viruses.
They protect bacteria by cutting foreign DNA.
They were discovered by Stewart Linn & Werner Arber.
They synthesize new DNA sequences.
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Multiple Choice
What is the significance of palindromic sequences in the function of restriction enzymes?
They allow enzymes to cut DNA at random sites.
They ensure enzymes cut at specific recognition sites.
They prevent enzymes from binding to DNA.
They help enzymes synthesize new DNA.
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Fill in the Blanks
A palindromic sequence in DNA is recognized by many restriction enzymes. Fill in the blank: The sequence recognized by EcoRI is
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Open Ended
Explain why sticky ends facilitate easier annealing of DNA fragments compared to blunt ends.
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Multiple Choice
Which of the following best describes the difference between sticky ends and blunt ends produced by restriction enzymes?
Sticky ends have single-stranded overhangs, while blunt ends are straight cuts with no overhangs.
Sticky ends are straight cuts, while blunt ends have overhangs.
Sticky ends can ligate with any fragment, while blunt ends cannot ligate at all.
Sticky ends are produced by all restriction enzymes, while blunt ends are not.
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Fill in the Blanks
Paul Berg created the first recombinant DNA by combining SV40 monkey virus with
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Fill in the Blanks
Type II restriction enzymes are most commonly used in laboratories because they cut DNA at the
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Multiple Select
Which of the following are types of restriction enzymes?
Type I
Type II
Type III
Type IV
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Open Ended
What are two factors that can affect restriction enzyme activity?
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Open Ended
Reflecting on today's lesson about recombinant DNA technology, what aspect would you like to explore further or what questions do you still have?
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Multiple Choice
Which of the following best describes the importance of genetic engineering as discussed in the lesson?
It allows for the creation of new species.
It helps in the detection of recombinant DNA molecules and PCR primers.
It is only used for experimental manipulation of DNA.
It has no significant role in molecular biology.
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