Q. What is a common concern regarding transgenic plants?
A.
Increased biodiversity
B.
Potential for gene transfer to wild relatives
C.
Higher nutritional value
D.
Reduced pesticide use
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Solution
A common concern regarding transgenic plants is the potential for gene transfer to wild relatives, which could disrupt local ecosystems.
Correct Answer:
B
— Potential for gene transfer to wild relatives
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Q. What is a potential risk associated with the cultivation of transgenic crops?
A.
Increased crop yields
B.
Development of resistant pests
C.
Improved nutritional content
D.
Lower production costs
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Solution
A potential risk associated with the cultivation of transgenic crops is the development of resistant pests, which can lead to increased pest management challenges.
Correct Answer:
B
— Development of resistant pests
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Q. What is one potential benefit of transgenic plants?
A.
Increased resistance to pests
B.
Higher water consumption
C.
Reduced growth rate
D.
Increased soil erosion
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Solution
One potential benefit of transgenic plants is increased resistance to pests, which can lead to higher crop yields.
Correct Answer:
A
— Increased resistance to pests
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Q. What is the purpose of using marker genes in transgenic plant development?
A.
To enhance photosynthesis
B.
To identify successfully transformed cells
C.
To increase water retention
D.
To improve soil quality
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Solution
Marker genes are used to identify successfully transformed cells, allowing researchers to select plants that have incorporated the desired genetic material.
Correct Answer:
B
— To identify successfully transformed cells
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Q. What regulatory body typically oversees the approval of transgenic plants?
A.
Environmental Protection Agency (EPA)
B.
Food and Drug Administration (FDA)
C.
United States Department of Agriculture (USDA)
D.
All of the above
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Solution
In the United States, the approval of transgenic plants is overseen by multiple agencies, including the EPA, FDA, and USDA.
Correct Answer:
D
— All of the above
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Q. Which gene transfer method uses Agrobacterium tumefaciens?
A.
Biolistics
B.
Agrobacterium-mediated transformation
C.
Electroporation
D.
Microinjection
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Solution
Agrobacterium-mediated transformation is a method that utilizes the natural ability of Agrobacterium tumefaciens to transfer DNA to plant cells.
Correct Answer:
B
— Agrobacterium-mediated transformation
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Q. Which of the following is a common method for creating transgenic plants?
A.
Gene editing using CRISPR
B.
Traditional crossbreeding
C.
Hydroponics
D.
Soil amendment
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Solution
Gene editing using CRISPR is a common method for creating transgenic plants by directly modifying the plant's DNA.
Correct Answer:
A
— Gene editing using CRISPR
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Q. Which of the following is NOT a method of introducing foreign DNA into plant cells?
A.
Agrobacterium-mediated transformation
B.
Gene gun (biolistics)
C.
Electroporation
D.
Natural selection
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Solution
Natural selection is not a method of introducing foreign DNA into plant cells; it is a process that occurs in nature.
Correct Answer:
D
— Natural selection
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Q. Which of the following traits can be introduced into transgenic plants?
A.
Herbicide resistance
B.
Increased susceptibility to diseases
C.
Reduced growth rate
D.
Lower nutritional content
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Solution
Herbicide resistance is a trait that can be introduced into transgenic plants, allowing them to survive applications of certain herbicides.
Correct Answer:
A
— Herbicide resistance
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