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Multiple Choice Feedback Quiz
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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

In genetic engineering, ligase is used as
A)a probe.
B)a sealing enzyme.
C)a restriction enzyme.
D)a mutagen.
4

A restriction enzyme is used to
A)isolate sections of cloned bacterial plasmids.
B)isolate sections of DNA.
C)cleave the source DNA into fragments.
D)both b and c are correct
5

A probe is used in which stage of the gene transfer process?
A)cleaving DNA
B)recombining DNA
C)cloning
D)screening
6

Polymerase chain reactions are used to
A)create DNA "fingerprints"
B)cleave bacterial plasmids
C)seal "sticky ends"
D)identify target plasmids
7

Which of the following statements is(are) true about processed mRNA?
A)Processed mRNA directs the formation of the primary mRNA transcript.
B)Introns have been removed from processed mRNA.
C)Processed mRNA directs the formation of cDNA.
D)Both b and c are true.
8

Genetic engineering has been used to do all of the following except
A)make plants more resistant to frost
B)make plants more resistant to disease
C)make plants more resistant to herbicides
D)All of the above are correct.
9

Engineering plants that are resistant to glyphosate was an important advancement because
A)glyphosate promotes frost damage.
B)glyphosate encourages the production of fruit that is lower in protein.
C)glyphosate is the active ingredient in herbicide.
D)glyphosate prevents the transfer of genes into the plants.
10

The use of bovine growth hormone has
A)raised controversy with groups opposed to genetic engineering.
B)increased milk production.
C)increased the weight gain of cows.
D)resulted in a, b, and c
11

The Ti plasmid provides a means to transfer genes into cereal plants, such as corn and rice.
A)true
B)false
12

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
13

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
14

Interferons are used to disrupt the reproduction of viruses.
A)true
B)false
15

The human genome refers to the entire collection of genes found within the human cell.
A)true
B)false
16

cDNA can be used as a probe to screen bacterial colonies for the presence of a desired gene
A)true
B)false
17

TNF should prove effective in relieving the symptoms of cystic fibrosis.
A)true
B)false
18

The second stage in gene transfer is cloning the plasmid.
A)true
B)fasle
19

Factor VIII is a protein found in anticoagulants used to treat heart attack patients.
A)true
B)false
20

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





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