Q. What is a common application of transgenic mice in research?
-
A.
Studying aging processes
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B.
Testing new drugs
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C.
Understanding genetic diseases
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D.
All of the above
Solution
Transgenic mice are used in various research applications, including studying aging processes, testing new drugs, and understanding genetic diseases.
Correct Answer:
D
— All of the above
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Q. What is a potential benefit of transgenic livestock?
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A.
Higher meat quality
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B.
Increased disease susceptibility
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C.
Longer gestation periods
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D.
Reduced feed efficiency
Solution
Transgenic livestock can be engineered for higher meat quality, among other benefits such as disease resistance.
Correct Answer:
A
— Higher meat quality
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Q. What is the primary purpose of creating transgenic animals?
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A.
To enhance their physical appearance
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B.
To produce proteins for medical use
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C.
To increase their lifespan
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D.
To improve their natural habitat
Solution
Transgenic animals are primarily created to produce proteins for medical use, such as therapeutic proteins and antibodies.
Correct Answer:
B
— To produce proteins for medical use
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Q. What is the role of the promoter in transgenic animal technology?
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A.
To enhance animal growth
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B.
To control gene expression
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C.
To provide nutrients
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D.
To increase reproduction rates
Solution
The promoter is a DNA sequence that controls the expression of a gene, determining when and where the gene is active.
Correct Answer:
B
— To control gene expression
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Q. What is the term for animals that have had their genome altered by the transfer of a gene from another species?
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A.
Cloned animals
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B.
Transgenic animals
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C.
Hybrid animals
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D.
Genetically modified organisms
Solution
Transgenic animals are those that have had their genome altered by the transfer of a gene from another species.
Correct Answer:
B
— Transgenic animals
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Q. Which animal is most commonly used for transgenic research?
-
A.
Dogs
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B.
Cats
-
C.
Mice
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D.
Rabbits
Solution
Mice are the most commonly used animals in transgenic research due to their genetic similarity to humans and short reproductive cycles.
Correct Answer:
C
— Mice
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Q. Which of the following is a method for introducing foreign DNA into animal cells?
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A.
Electroporation
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B.
Microinjection
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C.
Viral vectors
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D.
All of the above
Solution
All of the listed methods—electroporation, microinjection, and viral vectors—are used to introduce foreign DNA into animal cells.
Correct Answer:
D
— All of the above
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Q. Which of the following is a potential ethical concern regarding transgenic animals?
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A.
Increased food production
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B.
Animal welfare issues
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C.
Improved disease resistance
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D.
Enhanced growth rates
Solution
Animal welfare issues are a significant ethical concern regarding the creation and use of transgenic animals.
Correct Answer:
B
— Animal welfare issues
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Q. Which regulatory body oversees the use of transgenic animals in research in the United States?
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A.
FDA
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B.
USDA
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C.
EPA
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D.
NIH
Solution
The USDA (United States Department of Agriculture) oversees the use of transgenic animals in research, along with other regulatory bodies.
Correct Answer:
B
— USDA
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Q. Which technique is commonly used to create transgenic animals?
-
A.
Gene therapy
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B.
CRISPR-Cas9
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C.
Cloning
-
D.
Artificial insemination
Solution
CRISPR-Cas9 is a widely used technique for creating transgenic animals by allowing precise editing of the genome.
Correct Answer:
B
— CRISPR-Cas9
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