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An effective tool for screening a large number of genetic sequences at once is known as


A) restriction analysis.
B) microarray.
C) FISH.
D) gel electrophoresis.
E) cDNA synthesis.

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

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Sticky- end fragments generated by EcoRI will hydrogen bond to any other sticky- end sequence.

A) True
B) False

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The insertion of foreign DNA directly into a cell's nucleus using a glass micropipet is called (microporation/electroporation/microinjection).

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microinjection

  Two men may be the father of a child. This figure shows the results of a DNA fingerprint analysis to determine paternity. M is the mother, C is the child, A and B are the two men. What is the best interpretation of these results? A)  Neither man is this child's father. B)  The man identified as A is probably the father. C)  Either man could be this child's father. D)  The man identified as B is probably the father. E)  Paternity cannot be determined from this data. Two men may be the father of a child. This figure shows the results of a DNA fingerprint analysis to determine paternity. M is the mother, C is the child, A and B are the two men. What is the best interpretation of these results?


A) Neither man is this child's father.
B) The man identified as A is probably the father.
C) Either man could be this child's father.
D) The man identified as B is probably the father.
E) Paternity cannot be determined from this data.

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

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Genetic (screening/sequencing/cloning) can be used to detect mutant genes associated with genetic diseases in individuals before any clinical symptoms are noted.

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Discuss one of the pros and cons regarding the application of recombinant DNA technology.

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One of the pros of the application of re...

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Outline a procedure for producing a useful new recombinant product.

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Many variations are possible. The answer...

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Which of the following is NOT a goal of recombinant DNA technology?


A) making it possible to clone humans
B) being able to remove or correct damaging traits in humans
C) combining genetic material from more than one organism to produce new useful organisms
D) creating organisms capable of producing useful products
E) eliminating undesirable traits from livestock or crops

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

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Restriction enzymes are useful only on synthetic DNAs.

A) True
B) False

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The goals of recombinant DNA technology include production of new organisms with useful combinations of traits.

A) True
B) False

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True

A subunit vaccine is prepared by extensive manipulation of the genome of the pathogen.

A) True
B) False

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Which of the following restriction enzyme sites would produce blunt- ended fragments? (The arrow represents the cutting site of the enzyme.)


A) CCC$GGG
B) G$AATTC
C) C$CGG
D) A$AGCTT
E) G$GATCC

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

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If a researcher used Escherichia coli DNA polymerase instead of Thermus aquaticus DNA polymerase in the PCR procedure, what would be the result?


A) DNA replication would stop after one cycle.
B) DNA replication would occur more slowly than normal.
C) DNA replication would occur twice as fast as normal.
D) DNA replication would not occur at all.
E) Many mistakes would occur.

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

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Which of the following procedures would be used to introduce DNA into a single mouse cell?


A) Southern blotting
B) gene gun
C) electroporation
D) protoplast fusion
E) microinjection

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

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Which of the following items is NOT a part of the name of a restriction enzyme?


A) the strain of the source bacterium
B) the specific epithet of the source bacterium
C) the genus of the source bacterium
D) Roman numerals to indicate its order of discovery
E) the Gram reaction of the source bacterium

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

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A library of cloned sequences representing the expressed genes of an organism is known as a


A) microarray.
B) cDNA library.
C) DNA fingerprint.
D) FISH library.
E) gene library.

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

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Explain what a transgenic organism is, and give two examples.

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A transgenic organism is one that contains genes from other organisms. These genes usually add some special ability or function to the organism. Agriculture offers many examples of transgenic organisms. Soybeans have been engineered to contain glyphosate- resistance genes, and other crops have been engineered to grow well in soil with high salt concentrations. Plants have been modified to be resistant to naturally occurring microbial diseases. Still other plants have been engineered to contain the gene for Bt toxin, a bacterial toxin that kills insect pests that would otherwise feed on and destroy the crop. Not all transgenic organisms represent such extreme genetic modifications, however. Some genetically modified organisms simply represent efforts to improve nutritional content (in the case of plant crops) or to increase food yield (in the case of bovine growth hormone, which is produced by transgenic bacteria and then given to cattle to increase their meat and milk yield).

The sequencing and analysis of an organism's genetic information is called


A) gene therapy.
B) genomics.
C) northern blotting.
D) PCR.
E) protein synthesis.

F) C) and D)
G) All of the above

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are used for cutting DNA molecules into fragments.


A) Antisense RNAs
B) RNA polymerases
C) Mutagens
D) DNA polymerase and DNA ligase
E) Restriction enzymes

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

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Small RNAs that bind to an mRNA and alter its expression are known as (antisense/probes/restriction) RNAs.

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