Q. What is the main advantage of using biopesticides? (2022)
A.
They are more effective than chemical pesticides
B.
They are environmentally friendly
C.
They are cheaper to produce
D.
They have a longer shelf life
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Solution
Biopesticides are derived from natural materials and are considered environmentally friendly compared to chemical pesticides.
Correct Answer: B — They are environmentally friendly
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Q. What is the main advantage of using CRISPR technology in genetic engineering? (2021)
A.
High precision
B.
Low cost
C.
Speed of modification
D.
All of the above
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Solution
CRISPR technology offers high precision, low cost, and speed of modification, making it a powerful tool in genetic engineering.
Correct Answer: D — All of the above
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Q. What is the main advantage of using genetically modified organisms (GMOs) in agriculture? (2021)
A.
Higher nutritional value
B.
Increased resistance to diseases
C.
Lower production costs
D.
All of the above
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Solution
GMOs can provide higher nutritional value, increased resistance to diseases, and lower production costs.
Correct Answer: D — All of the above
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Q. What is the main advantage of using transgenic animals in research? (2021)
A.
Increased lifespan
B.
Disease modeling
C.
Higher reproduction rate
D.
Better growth rate
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Solution
Transgenic animals are primarily used in research for disease modeling, helping scientists understand human diseases.
Correct Answer: B — Disease modeling
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Q. What is the main advantage of using transgenic plants? (2022)
A.
Higher nutritional value
B.
Increased growth rate
C.
Resistance to herbicides
D.
Faster reproduction
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Solution
Transgenic plants are engineered to be resistant to herbicides, allowing for easier weed management.
Correct Answer: C — Resistance to herbicides
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Q. What is the main application of CRISPR technology? (2023)
A.
Gene therapy
B.
Gene editing
C.
DNA sequencing
D.
Protein synthesis
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Solution
CRISPR technology is primarily used for gene editing, allowing precise modifications to DNA.
Correct Answer: B — Gene editing
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Q. What is the main goal of bioremediation? (2022)
A.
To produce biofuels
B.
To clean up contaminated environments
C.
To enhance soil fertility
D.
To increase crop yield
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Solution
Bioremediation aims to clean up contaminated environments using microorganisms, making option 'To clean up contaminated environments' the correct answer.
Correct Answer: B — To clean up contaminated environments
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Q. What is the main purpose of using biopesticides in agriculture? (2023)
A.
Increase crop yield
B.
Reduce chemical pesticide use
C.
Enhance soil fertility
D.
Improve water retention
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Solution
Biopesticides are used to reduce the reliance on chemical pesticides, promoting a more sustainable approach to pest management.
Correct Answer: B — Reduce chemical pesticide use
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Q. What is the main purpose of using genetically modified crops? (2023)
A.
To produce more flowers
B.
To enhance flavor
C.
To improve resistance to diseases
D.
To reduce labor costs
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Solution
Genetically modified crops are primarily developed to improve resistance to diseases, pests, and environmental conditions.
Correct Answer: C — To improve resistance to diseases
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Q. What is the primary application of recombinant DNA technology in agriculture? (2020)
A.
Increased crop yield
B.
Pest resistance
C.
Improved nutritional value
D.
All of the above
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Solution
Recombinant DNA technology is used to enhance crop yield, provide pest resistance, and improve nutritional value, making option 'All of the above' the correct answer.
Correct Answer: D — All of the above
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Q. What is the primary application of recombinant DNA technology in medicine? (2020)
A.
Production of insulin
B.
Gene therapy
C.
Vaccines
D.
All of the above
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Solution
Recombinant DNA technology is used in various medical applications including the production of insulin, gene therapy, and vaccines.
Correct Answer: D — All of the above
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Q. What is the primary goal of gene therapy? (2021)
A.
To clone organisms
B.
To replace defective genes
C.
To produce vaccines
D.
To enhance crop traits
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Solution
The primary goal of gene therapy is to replace defective genes in order to treat or prevent diseases.
Correct Answer: B — To replace defective genes
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Q. What is the primary purpose of using recombinant DNA technology in medicine? (2019)
A.
To create vaccines
B.
To produce antibiotics
C.
To synthesize hormones
D.
All of the above
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Solution
Recombinant DNA technology is used to create vaccines, produce antibiotics, and synthesize hormones like insulin.
Correct Answer: D — All of the above
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Q. What is the primary use of bioremediation? (2023)
A.
To produce biofuels
B.
To clean up environmental pollutants
C.
To enhance soil fertility
D.
To increase crop yield
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Solution
Bioremediation is primarily used to clean up environmental pollutants using microorganisms.
Correct Answer: B — To clean up environmental pollutants
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Q. What is the primary use of CRISPR technology in biotechnology? (2023)
A.
Gene editing
B.
Protein synthesis
C.
Cell culture
D.
DNA replication
Show solution
Solution
CRISPR technology is primarily used for gene editing, allowing precise modifications to DNA sequences.
Correct Answer: A — Gene editing
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Q. What is the purpose of using biopesticides in agriculture? (2023)
A.
To increase soil fertility
B.
To control pests using natural organisms
C.
To enhance crop growth
D.
To improve water retention
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Solution
Biopesticides are used to control pests through natural organisms, making option 'To control pests using natural organisms' the correct answer.
Correct Answer: B — To control pests using natural organisms
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Q. What is the purpose of using CRISPR technology in biotechnology? (2023)
A.
To clone organisms
B.
To edit genes
C.
To produce vaccines
D.
To sequence DNA
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Solution
CRISPR technology is primarily used for gene editing, allowing precise modifications to DNA.
Correct Answer: B — To edit genes
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Q. What is the purpose of using DNA fingerprinting in forensic science? (2023)
A.
To identify individuals
B.
To clone organisms
C.
To produce vaccines
D.
To enhance crop yield
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Solution
DNA fingerprinting is used to identify individuals based on their unique DNA profiles, making it crucial in forensic science.
Correct Answer: A — To identify individuals
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Q. What is the purpose of using restriction enzymes in genetic engineering? (2023)
A.
To cut DNA at specific sites
B.
To amplify DNA
C.
To sequence DNA
D.
To repair DNA
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Solution
Restriction enzymes are used to cut DNA at specific sequences, which is essential for cloning and genetic engineering.
Correct Answer: A — To cut DNA at specific sites
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Q. What is the role of Agrobacterium tumefaciens in biotechnology? (2021)
A.
Gene delivery
B.
Protein synthesis
C.
Cell division
D.
DNA replication
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Solution
Agrobacterium tumefaciens is used as a vector for gene delivery in plant biotechnology.
Correct Answer: A — Gene delivery
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Q. What is the role of Agrobacterium tumefaciens in genetic engineering? (2022)
A.
It acts as a vector
B.
It is a source of restriction enzymes
C.
It is used for DNA sequencing
D.
It helps in protein synthesis
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Solution
Agrobacterium tumefaciens is used as a vector to transfer genes into plant cells.
Correct Answer: A — It acts as a vector
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Q. What is the role of biopesticides in agriculture? (2021)
A.
Increase soil fertility
B.
Control pest populations
C.
Enhance crop yield
D.
Improve water retention
Show solution
Solution
Biopesticides are used to control pest populations in an environmentally friendly manner, reducing the reliance on chemical pesticides.
Correct Answer: B — Control pest populations
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Q. What is the role of genetically modified organisms (GMOs) in agriculture? (2022)
A.
Increase biodiversity
B.
Reduce crop yield
C.
Enhance resistance to pests
D.
Decrease nutritional value
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Solution
GMOs are engineered to enhance resistance to pests, thereby increasing crop yield.
Correct Answer: C — Enhance resistance to pests
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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
Show solution
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
Show solution
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.
Show solution
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
Show solution
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
Show solution
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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