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1
Genetic engineering has successfully transferred genes from eukaryotic cells into __________________.
A)bacteria.
B)plants.
C)animals.
D)all of the above
2
DNA molecules can be cut into sections by using __________________.
A)ATP.
B)gel electrophoresis.
C)restriction enzymes.
D)plasmids.
3
A restriction enzyme is used in which stage of the gene transfer process?
A)cleaving DNA
B)recombining DNA
C)cloning
D)screening
4
Genetic engineering has provided a method for the production of insulin to fight diabetes, but it remains too expensive to be practical.
A)True
B)False
5
Piggyback vaccines work by triggering the body's defense system with a harmless virus carrying the surface proteins of a disease organism.
A)True
B)False
6
Genetic engineering can make plants toxic to insect pests that feed on the plant, but leave the plant harmless to humans.
A)True
B)False
7
Gregor Mendel was the first researcher to sequence a genome.
A)True
B)False
8
The correct order of events for sequencing DNA is __________________.
A)amplify DNA fragment of unknown sequence; gel electrophoresis; heat; add four different chain-terminating chemical tags; mix with primer; computer analysis.
B)amplify DNA fragment of unknown sequence; heat; gel electrophoresis; mix with primer; computer analysis; add four different chain-terminating chemical tags.
C)amplify DNA fragment of unknown sequence; mix with primer; add four different chain-terminating chemical tags; heat; gel electrophoresis; computer analysis.
D)amplify DNA fragment of unknown sequence; add four different chain-terminating chemical tags; gel electrophoresis; heat; mix with primer; computer analysis.
E)amplify DNA fragment of unknown sequence; add four different chain-terminating chemical tags; heat; mix with primer; computer analysis; gel electrophoresis.
9
How is it possible that there are four times as many kinds of mRNA as there are genes in the human genome?
A)genes are distributed evenly over the genome and not all are used
B)human genes are fragmented and use alternative splicing
C)the human genome contains special introns that code for proteins
D)the human genome contains bacterial genes that are not accounted for
E)None of these is correct.
10
Improving a type of livestock through breeding takes time whereas producing a clone of a desired animal would be faster and more efficient.
A)True
B)False
11
The idea of cloning was first suggested by Wilmut in 1990.
A)True
B)False
12
Locking genes in the on position involves ________________.
A)ionization
B)hydration
C)methylation
D)phosphorylation
13
Embryonic stem cells are totipotent meaning that each is capable of developing into an individual.
A)True
B)False
14
The first successful cloning of an adult mammal was of _______________.
A)dogs
B)cats
C)humans
D)frogs
E)sheep
15
Wilmut's cloning success resulted from surgically combining __________________ and then applying an electrical shock to kick-start the cell cycle.
A)frog cells and sheep cells
B)cat cells and dog cells
C)mammary cells and sperm
D)egg cells and mammary cells
E)sperm and egg cells
16
To obtain embryonic stem cells for use in replacing a patient's lost or damaged tissue, the embryo must be destroyed.
A)True
B)False
17
The AVV vector was used successfully to cure retinal degenerative disease in dogs.
A)True
B)False
18
A promising vector in gene therapy is a(an) _______________.
A)bacterium
B)embryonic stem cell
C)adult stem cell
D)virus
E)all of the above
19
Therapeutic uses of embryonic stem cells might someday cure which of the following diseases and conditions?
A)Juvenile diabetes
B)Parkinson's disease
C)damaged heart muscle
D)injured nerve tissue
E)All of the above
20
The development of "golden" rice will help prevent which nutritional deficiency?
A)vitamin A
B)calcium
C)iron
D)vitamin C
E)A & C





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