Q. What is the role of genetically modified organisms (GMOs) in food production? (2021)
A.
Increase in food safety
B.
Reduction of food waste
C.
Enhancement of food quality
D.
All of the above
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Solution
GMOs are designed to enhance food quality, safety, and reduce waste, thus all options are correct.
Correct Answer: D — All of the above
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Q. What is the significance of biopesticides in agriculture? (2020)
A.
They are more toxic than chemical pesticides
B.
They are derived from natural materials
C.
They require more application frequency
D.
They are less effective than traditional pesticides
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Solution
Biopesticides are derived from natural materials and are considered safer for the environment compared to chemical pesticides.
Correct Answer: B — They are derived from natural materials
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Q. What is the significance of bioremediation in biotechnology? (2023)
A.
Production of biofuels
B.
Waste management
C.
Food production
D.
Genetic engineering
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Solution
Bioremediation is significant in biotechnology as it involves the use of microorganisms to clean up contaminated environments, thus aiding in waste management.
Correct Answer: B — Waste management
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Q. What is the significance of Bt cotton? (2020)
A.
It is resistant to drought
B.
It produces its own insecticide
C.
It has higher nutritional value
D.
It grows faster than normal cotton
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Solution
Bt cotton is genetically modified to produce a toxin that is harmful to specific pests, reducing the need for chemical insecticides.
Correct Answer: B — It produces its own insecticide
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Q. What is the significance of the Human Genome Project in biotechnology? (2021)
A.
It helps in cloning animals.
B.
It provides insights into genetic diseases.
C.
It allows for the production of transgenic plants.
D.
It enhances food preservation techniques.
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Solution
The Human Genome Project has provided valuable information about the human genome, aiding in the understanding and treatment of genetic diseases.
Correct Answer: B — It provides insights into genetic diseases.
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Q. What is the significance of the Human Genome Project? (2021)
A.
To map all human genes
B.
To develop new vaccines
C.
To improve agricultural crops
D.
To study animal genetics
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Solution
The Human Genome Project aimed to map all human genes, providing insights into genetics and disease.
Correct Answer: A — To map all human genes
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Q. Which biotechnological application is used to produce insulin? (2018)
A.
Fermentation
B.
Gene cloning
C.
Cell culture
D.
Bioremediation
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Solution
Gene cloning is used to produce insulin by inserting the human insulin gene into bacteria, which then produce insulin.
Correct Answer: B — Gene cloning
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Q. Which enzyme is commonly used in the process of DNA cloning? (2022)
A.
DNA polymerase
B.
Restriction endonuclease
C.
Ligase
D.
Reverse transcriptase
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Solution
Restriction endonucleases are used to cut DNA at specific sequences, which is essential for DNA cloning.
Correct Answer: B — Restriction endonuclease
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Q. Which enzyme is commonly used in the process of gene cloning? (2018)
A.
DNA polymerase
B.
Ligase
C.
Restriction endonuclease
D.
RNA polymerase
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Solution
Restriction endonucleases are used to cut DNA at specific sequences, facilitating gene cloning.
Correct Answer: C — Restriction endonuclease
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Q. Which of the following biotechnological applications is used for the production of insulin? (2022)
A.
Fermentation
B.
Gene cloning
C.
Hybridoma technology
D.
PCR
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Solution
Gene cloning is used to produce insulin by inserting the human insulin gene into bacteria, which then produce insulin.
Correct Answer: B — Gene cloning
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Q. Which of the following biotechnological applications is used in the production of biofuels? (2023)
A.
Gene therapy
B.
Microbial fermentation
C.
Cloning
D.
Tissue culture
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Solution
Microbial fermentation is a key process in the production of biofuels, utilizing microorganisms to convert biomass into energy.
Correct Answer: B — Microbial fermentation
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Q. Which of the following biotechnological applications is used in the treatment of genetic disorders? (2021)
A.
Gene therapy
B.
Bioremediation
C.
Fermentation
D.
Tissue culture
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Solution
Gene therapy involves the introduction of normal genes into cells to correct genetic disorders.
Correct Answer: A — Gene therapy
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Q. Which of the following is a benefit of using genetically modified organisms (GMOs)? (2023)
A.
Increased crop yield
B.
Reduced pesticide use
C.
Enhanced nutritional content
D.
All of the above
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Solution
GMOs can lead to increased crop yield, reduced pesticide use, and enhanced nutritional content.
Correct Answer: D — All of the above
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Q. Which of the following is a biotechnological application in agriculture? (2020)
A.
Production of insulin
B.
Genetically modified crops
C.
Gene therapy
D.
DNA fingerprinting
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Solution
Genetically modified crops are developed to enhance yield, resistance to pests, and tolerance to environmental stresses.
Correct Answer: B — Genetically modified crops
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Q. Which of the following is a biotechnological application in environmental management? (2022)
A.
Bioremediation
B.
Gene therapy
C.
Cloning
D.
Transgenic animals
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Solution
Bioremediation uses microorganisms to degrade environmental contaminants, making it a key application in environmental management.
Correct Answer: A — Bioremediation
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Q. Which of the following is a biotechnological application in medicine? (2019)
A.
Gene therapy
B.
Bioremediation
C.
Biofuels
D.
Plant breeding
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Solution
Gene therapy is a direct application of biotechnology in medicine, aimed at treating genetic disorders.
Correct Answer: A — Gene therapy
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Q. Which of the following is a biotechnological method for waste management? (2022)
A.
Bioremediation
B.
Cloning
C.
PCR
D.
Gene editing
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Solution
Bioremediation uses microorganisms to degrade environmental contaminants, making it a method for waste management.
Correct Answer: A — Bioremediation
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Q. Which of the following is a biotechnological method used for the production of vaccines? (2021)
A.
Fermentation
B.
Cloning
C.
Gene therapy
D.
DNA sequencing
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Solution
Fermentation is a biotechnological method used to produce vaccines by cultivating microorganisms.
Correct Answer: A — Fermentation
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Q. Which of the following is a common application of biotechnology in medicine? (2018)
A.
Bioremediation
B.
Gene cloning
C.
Fermentation
D.
Tissue culture
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Solution
Gene cloning is a common application in biotechnology for producing proteins and studying genes.
Correct Answer: B — Gene cloning
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Q. Which of the following is a common application of biotechnology in the food industry? (2020)
A.
Fermentation
B.
Genetic modification
C.
Food preservation
D.
All of the above
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Solution
Biotechnology is widely used in the food industry for fermentation, genetic modification, and food preservation.
Correct Answer: D — All of the above
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Q. Which of the following is a common application of biotechnology in the pharmaceutical industry? (2020)
A.
Production of biofuels
B.
Development of genetically modified crops
C.
Synthesis of therapeutic proteins
D.
Bioremediation of oil spills
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Solution
The synthesis of therapeutic proteins, such as insulin and monoclonal antibodies, is a common application of biotechnology in the pharmaceutical industry.
Correct Answer: C — Synthesis of therapeutic proteins
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Q. Which of the following is a common method for producing transgenic plants? (2022)
A.
Microinjection
B.
Agrobacterium-mediated transformation
C.
Somatic cell nuclear transfer
D.
CRISPR-Cas9
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Solution
Agrobacterium-mediated transformation is a widely used method for producing transgenic plants by transferring genes into plant cells.
Correct Answer: B — Agrobacterium-mediated transformation
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Q. Which of the following is a genetically modified crop? (2019)
A.
Bt cotton
B.
Wheat
C.
Rice
D.
Barley
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Solution
Bt cotton is a genetically modified crop that has been engineered to express a bacterial protein that is toxic to certain pests.
Correct Answer: A — Bt cotton
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Q. Which of the following is a genetically modified organism (GMO)? (2019)
A.
Bt cotton
B.
Organic wheat
C.
Wild rice
D.
None of the above
Show solution
Solution
Bt cotton is a genetically modified organism that has been engineered to express a bacterial toxin for pest resistance.
Correct Answer: A — Bt cotton
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Q. Which of the following is a method of bioremediation? (2019)
A.
Using bacteria to clean oil spills
B.
Using chemical fertilizers
C.
Planting cover crops
D.
Using pesticides
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Solution
Bioremediation involves using microorganisms, such as bacteria, to degrade environmental contaminants like oil spills.
Correct Answer: A — Using bacteria to clean oil spills
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Q. Which of the following is a method of gene therapy? (2021)
A.
Using antibiotics
B.
Inserting a healthy gene into a patient's cells
C.
Cloning
D.
Creating genetically modified crops
Show solution
Solution
Gene therapy involves inserting a healthy gene into a patient's cells to treat genetic disorders.
Correct Answer: B — Inserting a healthy gene into a patient's cells
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Q. Which of the following is a method of producing insulin using biotechnology? (2018)
A.
Fermentation
B.
Hybridization
C.
Cloning
D.
Cross-breeding
Show solution
Solution
Insulin is produced using fermentation processes involving genetically modified bacteria.
Correct Answer: A — Fermentation
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Q. Which of the following is a method used for cloning in biotechnology? (2019)
A.
Somatic cell nuclear transfer
B.
Polymerase chain reaction
C.
Gel electrophoresis
D.
DNA sequencing
Show solution
Solution
Somatic cell nuclear transfer is a method used for cloning, where the nucleus of a somatic cell is transferred to an egg cell.
Correct Answer: A — Somatic cell nuclear transfer
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Q. Which of the following is a method used for cloning in plants? (2022)
A.
Micropropagation
B.
Electroporation
C.
Transfection
D.
PCR
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Solution
Micropropagation is a method used for cloning plants by growing them from small tissue samples in a controlled environment.
Correct Answer: A — Micropropagation
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Q. Which of the following is a method used for gene cloning? (2023)
A.
PCR
B.
Gel electrophoresis
C.
DNA sequencing
D.
All of the above
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Solution
PCR (Polymerase Chain Reaction) is a method used for amplifying DNA, which is essential in gene cloning.
Correct Answer: A — PCR
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