AnswersFL-2000310-Biology 1 BThe Basis of DNA Technology

The Basis of DNA Technology Answers

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According to advocates for the use of genetic engineering, which is an example of the importance of recombinant DNA technology?

A
Genes from nuts used in other organisms can affect allergies.
B
The increase of patents drives the seed cost.
C
There is a diminished opportunity for organic agriculture.
D
There is a reduced use of pesticides, herbicides, and fertilizers.
2
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Which is an advantage of genetic engineering?

A
lack of labeling of food products that have been genetically engineered
B
diminished opportunities for organic agriculture
C
lack of long-term studies on food safety and environmental impact
D
diminished effects of diseases on crops
4

The insertion of the human insulin gene into the bacterium Escherichia coli allowed it to produce human insulin. Which type of organism is E. coli?

A
restriction organism
B
recombinant organism
C
transgenic organism
D
vector organism
5

Which best describes the first step in genetic engineering?

A
Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host.
B
All the DNA from a desired organism is isolated to form recombinant DNA for use in a host.
C
Different sections of DNA from a desired organism are inserted into a host so that beneficial traits will be expressed.
D
One strand of DNA is isolated and inserted into a host so recombinant DNA can be formed.
6

Which describes a potential benefit for the environment that stems from genetic engineering?

A
change in nontarget organisms
B
pharmaceutics
C
phytoremediation
D
temperature resistance
7

Which is the role of restriction enzymes?

A
to isolate the selected gene
B
to cut DNA into fragments of different lengths
C
to move and separate the strands of DNA
D
to join the sticky ends of DNA fragments
8

Which best describes the process of making recombinant DNA?

A
The isolated DNA is inserted into a mechanical vector for cloning.
B
The isolated genes are placed into a vector.
C
The sticky ends of fragmented DNA are joined with vector DNA.
D
The isolated genes are joined by using restriction enzymes.
9

What is the most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait?

A
isolate more recombinant DNA
B
use electrophoresis to separate more recombinant DNA
C
clone the recombinant DNA in a biological vector
D
use restriction enzymes to cut the recombinant DNA into fragments
10

Scientists have been able to inject the firefly's lighting gene into a tobacco plant, allowing it to glow. Which type of organism is this tobacco plant?

A
recombinant organism
B
restriction organism
C
vector organism
D
transgenic organism

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