Biology
Plant Propagation Techniques
660 Questions
Plant propagation techniques cover both natural and artificial methods of cultivating plants, including micropropagation, tissue culture, and layering. These botanical concepts evaluate how desirable characteristics are multiplied and transferred into new plants. Questions on this topic routinely feature in the biology segment of various state and central competitive exams.
Micropropagation methodsArtificial vegetative propagationPlant tissue cultureLayering techniquesMeristem differentiation
Plant Propagation Techniques Questions
What is the Plant Variety Protection Act (PVPA)?
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A United States law that protects the rights of plant breeders
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A European Union law that protects the rights of plant breeders
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A Canadian law that protects the rights of plant breeders
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A Japanese law that protects the rights of plant breeders
A
Correct answer
Explanation
The PVPA is a United States law that protects the rights of plant breeders. It was enacted in 1970 and has been amended several times since then.
What is the term for the practice of raising fish and plants together in a symbiotic system, utilizing the waste from one to fertilize the other?
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Aquaponics
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Hydroponics
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Aeroponics
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Permaculture
A
Correct answer
Explanation
Aquaponics is a sustainable food production system that combines aquaculture (raising fish) and hydroponics (growing plants in water). The fish waste provides nutrients for the plants, while the plants help purify the water for the fish.
What is the term used to describe a plant's ability to resist or tolerate a pathogen?
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Resistance
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Susceptibility
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Immunity
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Tolerance
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Pathogenicity
A
Correct answer
Explanation
Resistance refers to a plant's ability to actively defend itself against a pathogen, preventing or minimizing infection and disease development.
What is the term used to describe the process by which a pathogen enters a plant?
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Infection
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Colonization
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Reproduction
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Dispersal
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Pathogenesis
A
Correct answer
Explanation
Infection refers to the process by which a pathogen successfully enters and establishes itself within a plant host, initiating the disease process.
What is the term used to describe the practice of transplanting organs or tissues from one part of the body to another part of the same body? (a) Autotransplantation (b) Allotransplantation (c) Xenotransplantation (d) Isograft
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(a) Autotransplantation
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(b) Allotransplantation
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(c) Xenotransplantation
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(d) Isograft
A
Correct answer
Explanation
Autotransplantation involves the transplantation of organs or tissues from one part of the body to another part of the same body.
What is the term used to describe the practice of transplanting organs or tissues from one species to another? (a) Autotransplantation (b) Allotransplantation (c) Xenotransplantation (d) Isograft
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(a) Autotransplantation
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(b) Allotransplantation
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(c) Xenotransplantation
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(d) Isograft
C
Correct answer
Explanation
Xenotransplantation involves the transplantation of organs or tissues from one species to another.
What is the term for the practice of growing fruit in vertical layers, often in urban areas?
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Vertical farming
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Hydroponics
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Aeroponics
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Aquaponics
A
Correct answer
Explanation
Vertical farming is a method of growing crops in vertically stacked layers, often in urban areas, using artificial lighting and controlled environmental conditions.
What is the term used to describe the process of cultivating crops and raising livestock in a controlled environment, often using artificial lighting and hydroponic systems?
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Aquaculture
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Aeroponics
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Hydroponics
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Permaculture
C
Correct answer
Explanation
Hydroponics is a method of growing plants without soil, using nutrient-rich water solutions. It is often employed in controlled environments, such as greenhouses or indoor vertical farms.
What is the term used to describe the practice of growing plants in a vertical arrangement, often in urban areas or indoor spaces, to maximize space and productivity?
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Aquaculture
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Aeroponics
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Hydroponics
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Vertical Farming
D
Correct answer
Explanation
Vertical farming involves growing crops in vertically stacked layers, using artificial lighting and controlled environmental conditions to optimize growth and yield.
What is the term for the practice of raising fish and plants together in a symbiotic system?
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Aeroponics
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Hydroponics
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Aquaculture
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Aquaponics
D
Correct answer
Explanation
Aquaponics is the practice of raising fish and plants together in a symbiotic system, where the fish waste provides nutrients for the plants, and the plants help filter the water for the fish.
What is the term for the practice of releasing hatchery-raised fish into natural waters to supplement wild populations?
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Stock enhancement
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Aquaculture
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Selective breeding
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Fish farming
A
Correct answer
Explanation
Stock enhancement aims to increase the abundance of wild fish populations by releasing hatchery-raised fish.
What is the process of artificially ripening fruits using chemicals called?
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Ripening
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Maturation
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Ethylene treatment
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All of the above
C
Correct answer
Explanation
Ethylene treatment is the process of artificially ripening fruits using chemicals. Ethylene is a natural plant hormone that promotes ripening. By exposing fruits to ethylene gas, the ripening process can be accelerated.
Which permaculture technique involves planting trees or shrubs in rows to create a windbreak or provide shade?
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Alley cropping
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Silvopasture
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Forest garden
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Keyline design
A
Correct answer
Explanation
Alley cropping is a permaculture technique where trees or shrubs are planted in rows to create a windbreak or provide shade for crops.
What is the term used to describe the transplantation of a tissue or organ from one identical twin to another?
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Autotransplantation
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Allotransplantation
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Xenotransplantation
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Isograft transplantation
D
Correct answer
Explanation
Isograft transplantation is the term used to describe the transplantation of a tissue or organ from one identical twin to another, where the donor and recipient have the same genetic makeup.
What is the term for the practice of integrating fish farming with plant cultivation?
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Aquaculture
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Aquaponics
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Hydroponics
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Aeroponics
B
Correct answer
Explanation
Aquaponics combines fish farming and plant cultivation, where fish waste provides nutrients for plants, and plants help purify water for fish.