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Questions and Answers
What are two advantages of genetically modified (GM) crops?
What are two advantages of genetically modified (GM) crops?
GM crops are less dependent on pesticides and can have enhanced nutritional content.
Name one disadvantage of GM crops related to human health.
Name one disadvantage of GM crops related to human health.
GM crops can impose human health risks due to altered genes.
Define precision farming in a few words.
Define precision farming in a few words.
Precision farming is a management concept that responds to crop variability.
List the three main components of precision farming.
List the three main components of precision farming.
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Identify the '5 R's of Precision Farming'.
Identify the '5 R's of Precision Farming'.
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What is a key challenge faced by precision farming?
What is a key challenge faced by precision farming?
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How can precision farming assist in weather management?
How can precision farming assist in weather management?
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Explain one application of precision farming.
Explain one application of precision farming.
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What process involves introducing a specific stretch of DNA into a plant's genome?
What process involves introducing a specific stretch of DNA into a plant's genome?
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What are transgenic crops?
What are transgenic crops?
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Name one source gene used in Bt Brinjal and its origin.
Name one source gene used in Bt Brinjal and its origin.
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What genetic improvement does Golden Rice aim to achieve?
What genetic improvement does Golden Rice aim to achieve?
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What is the role of the Bacillus thuringiensis gene in Bt Cotton?
What is the role of the Bacillus thuringiensis gene in Bt Cotton?
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What is a key benefit of genetically modified crops in agriculture?
What is a key benefit of genetically modified crops in agriculture?
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Which gene is associated with the 'Flavr Savr' tomato and what does it affect?
Which gene is associated with the 'Flavr Savr' tomato and what does it affect?
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How does Bt corn benefit from genetic modification?
How does Bt corn benefit from genetic modification?
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Study Notes
Genetic Modification of Crops
- Involves adding a specific DNA segment to a plant's genome, altering its characteristics
- Transfection is the process of introducing naked, purified DNA into plant cells
- Transgenic crops contain a foreign gene
- Examples of genetically modified crops include Bt Brinjal, Golden Rice, Bt Cotton, Flavr Savr tomato, and Bt corn
Benefits of GM Crops
- Increased crop yields due to enhanced attributes
- Improved shelf life and resistance to fungi (e.g., Flavr Savr tomatoes)
- Reduced reliance on pesticides and insecticides (e.g., Bt cotton)
- Enhanced nutritional content (e.g., Golden rice)
- Decreased post-harvest losses (e.g., Flavr Savr tomatoes)
Disadvantages of GM Crops
- Expensive cultivation costs
- Prioritization of market value over human well-being
- Potential human health risks due to gene alterations
- Potential impact on natural gene flow
Precision Farming
- A farming management method focused on observing, measuring, and adapting to variations (inter- and intra-field) within crops
- Also known as precision agriculture, satellite agriculture, as-needed farming, and site-specific crop management (SSCM)
- Employs a cycle of GIS yield maps, stress detection algorithms, precision agricultural application cycles, and variable rate technology (VRT)
Components of Precision Farming
- Information: data collection, monitoring of data and analysis
- Technology: GIS, GPS, auto-steer, yield monitors, remote sensing, data collection and analysis
- Management: strategic use of data and technology for better decision making, and efficient actions
5 R's of Precision Farming
- Right Input
- Right Amount
- Right Place
- Right Time
- Right Manner
Applications of Precision Farming
- Agricultural mapping and field scouting
- Soil sampling and analysis
- Weather monitoring
- Labor management
- Equipment management
Challenges of Precision Farming
- Data management
- Integration of different data sources
- High costs of equipment and software
Sustainable Agriculture
- Farming practices that protect and enhance the environment while maximizing the use of natural resources—both renewable and non-renewable
- Aims for biodiversity, soil health, water conservation, and sustainable pest management.
Components of Sustainable Agriculture
- Improved food production, high production benefits at low costs
- Optimized resource usage and conservation
- Minimization of off-site environmental impacts
- Reduced environmental risks
- Crop diversity
- Crop rotation
- Nutrient management
- Pest management
- Water management
- Soil management
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Description
Test your knowledge on the genetic modification of crops, including the benefits, disadvantages, and examples of transgenic plants. This quiz covers important concepts such as transfection, precision farming, and the impact of GM crops on agriculture and health.
