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The enzyme required to attach the sticky ends of DNA and used when splicing DNA fragments into other DNA is ______.


A) endonuclease
B) ligase
C) reverse transcriptase
D) helicase

E) A) and B)
F) B) and C)

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B

Identification of unique DNA fingerprints relies on the presence of single nucleotide polymorphisms among samples.

A) True
B) False

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Each of the following are features of a cloning host except


A) quick generation time.
B) minimal growth requirements.
C) mapped genome.
D) pathogenicity.
E) transformable.

F) A) and D)
G) B) and C)

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You want to identify Mycobacterium tuberculosis in a patient sputum sample.Which procedure would be most useful in this case?


A) Whole genome sequencing
B) Polymerase chain reaction
C) DNA probe analysis
D) Microarray analysis

E) A) and B)
F) All of the above

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Before the advent of biotechnology,diabetics would use insulin harvested from cows.Now they receive human insulin produced through ______.


A) gel electrophoresis
B) gene therapy
C) PCR
D) recombinant DNA technology

E) B) and C)
F) A) and D)

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EcoRI and HindIII are ______.


A) palindromes
B) reverse transcriptases
C) restriction endonucleases
D) ligases
E) DNA polymerases

F) B) and C)
G) C) and D)

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What type of DNA map gives locations and sizes of DNA sections?


A) Linkage
B) Sequence
C) Physical
D) Geographical
E) Chromosomal

F) A) and B)
G) D) and E)

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The process of introducing a needed,normal gene into human cells is called DNA mapping.

A) True
B) False

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One reason the field of proteomics is continually evolving following the systematic study of an organism's genome is because


A) it became apparent that while the organism's genome is relatively stable, protein expression in an organism is constantly changing.
B) the expression of proteins is fixed in each organism so sequencing the genome is essential to understanding phenotypes.
C) it became apparent that protein expression is relatively uniform, whereas the genome is constantly changing.
D) once the genome had been sequenced, all protein expression was understood.

E) B) and C)
F) A) and D)

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The study of genomes of a particular community is called ______.


A) metabolomics
B) proteomics
C) genomology
D) genomics
E) metagenomics

F) D) and E)
G) C) and D)

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E

Each of the following are features of a cloning vector except


A) origin of replication.
B) reverse transcriptases.
C) genetic markers used to screen for recombinants.
D) capacity for large inserts.
E) multiple cloning sites.

F) C) and D)
G) C) and E)

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The commercial product Frostban consists of a genetically altered bacterium which prevents ice crystals from forming on plants,thereby reducing freezing of plants and financial distress to the farmers as a result of freezing weather.This product contains a strain of ______.


A) Escherichia coli
B) Saccharomyces cerevisiae
C) Thermus aquaticus
D) Pseudomonas fluorescens
E) Pseudomonas syringae

F) B) and D)
G) B) and C)

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Which of the following is a list of the materials required for PCR?


A) Primers, Taq DNA polymerase, nucleotides
B) Primers, Taq RNA polymerase, nucleotides
C) Reverse transcriptase, Taq RNA polymerase, nucleotides
D) Reverse transcriptase, Taq DNA polymerase, nucleotides

E) B) and D)
F) A) and D)

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Which step in gene mapping involves transformation?


A) Target DNA removed from cells and isolated
B) Cloning host receives plasmid
C) Target DNA and plasmid treated with the same restriction endonuclease
D) Desired protein is produced by cloning host
E) Gene is amplified by multiplication of cloning host

F) A) and B)
G) C) and D)

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DNA polymerases used in PCR


A) use an RNA template to make complementary DNA.
B) must remain active at very cold temperatures.
C) include Taq polymerases and Vent polymerase.
D) are labeled with fluorescent dyes.

E) None of the above
F) B) and C)

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C

Any use of an organism's biochemical processes to create a product is referred to as ______.


A) genetic engineering
B) biotechnology
C) recombinant DNA
D) gel electrophoresis
E) gene probes

F) B) and E)
G) None of the above

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Which of the following is not true of vectors?


A) They are easy to manipulate.
B) They can detect RNA in cells.
C) An origin of replication (ORI) is present.
D) They contain a gene for drug resistance.
E) They must accept DNA of desired size.

F) B) and C)
G) B) and D)

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You have made a specific DNA probe that will bind to a key sequence on the DNA of Neisseria gonorrhoeae,allowing your company to market a gonorrhea test kit that can be used to identify the bacterium in genital tract specimens.However,upon testing it out against a known Neisseria gonorrhoeae culture,you find that it does not work.Which of the following is a possible explanation for this negative result?


A) You forgot to label the probe sequence with a reporter molecule.
B) You forgot to add the mRNA to the DNA probe sample.
C) You forgot to digest the probe with restriction endonucleases.
D) You forgot to incubate the test at the 75oC temperature required for hybridization.

E) A) and D)
F) A) and B)

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Fluorescent in situ hybridization (FISH) probes are applied to intact cells and observed microscopically for the presence and location of


A) DNA.
B) proteins.
C) a specific genetic marker sequence.
D) recombinant DNA.
E) RNA.

F) D) and E)
G) A) and C)

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A technique that separates a readable pattern of DNA fragments is ______.


A) genetic engineering
B) biotechnology
C) recombinant DNA
D) gel electrophoresis
E) gene probes

F) None of the above
G) A) and C)

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