Reproduction in Plants - Applications
Q. What is the main advantage of using hybrid plants in agriculture?
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A.
Higher resistance to diseases
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B.
Lower growth rates
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C.
Increased reliance on specific pollinators
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D.
Reduced yield
Solution
Hybrid plants are often bred for higher resistance to diseases, leading to better crop yields.
Correct Answer: A — Higher resistance to diseases
Q. What is the primary advantage of using tissue culture in plant reproduction?
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A.
It requires less space
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B.
It produces seeds faster
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C.
It enhances genetic diversity
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D.
It is less expensive
Solution
Tissue culture allows for the propagation of many plants in a small space, making it efficient for large-scale production.
Correct Answer: A — It requires less space
Q. What is the primary purpose of seed dispersal in plants?
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A.
To increase genetic diversity
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B.
To provide nutrients to the soil
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C.
To attract pollinators
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D.
To reduce competition among seedlings
Solution
Seed dispersal helps reduce competition among seedlings by spreading them over a wider area.
Correct Answer: D — To reduce competition among seedlings
Q. What is the role of pollinators in plant reproduction?
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A.
To provide water to the plants
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B.
To assist in seed dispersal
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C.
To transfer pollen from male to female structures
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D.
To enhance photosynthesis
Solution
Pollinators transfer pollen from the male anthers to the female stigma, facilitating fertilization.
Correct Answer: C — To transfer pollen from male to female structures
Q. What is the significance of apomixis in plant reproduction?
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A.
It allows for sexual reproduction without fertilization
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B.
It increases the need for pollinators
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C.
It reduces seed viability
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D.
It promotes genetic diversity
Solution
Apomixis allows plants to produce seeds without fertilization, maintaining the parent plant's genetic makeup.
Correct Answer: A — It allows for sexual reproduction without fertilization
Q. Which method of plant reproduction involves the use of cuttings?
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A.
Sexual reproduction
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B.
Asexual reproduction
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C.
Pollination
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D.
Grafting
Solution
Using cuttings is a form of asexual reproduction where a part of the plant is used to grow a new individual.
Correct Answer: B — Asexual reproduction
Q. Which of the following is a benefit of vegetative propagation?
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A.
Increased genetic variation
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B.
Faster reproduction
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C.
Dependence on pollinators
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D.
Higher seed production
Solution
Vegetative propagation allows for faster reproduction as it does not rely on the slower process of seed formation.
Correct Answer: B — Faster reproduction
Q. Which of the following is a method of seedless reproduction in plants?
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A.
Fertilization
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B.
Grafting
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C.
Cross-pollination
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D.
Seed germination
Solution
Grafting is a method of asexual reproduction that does not involve seeds, allowing for the propagation of specific plant varieties.
Correct Answer: B — Grafting
Q. Which type of plant reproduction is most commonly used in commercial horticulture?
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A.
Seed propagation
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B.
Asexual propagation
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C.
Natural pollination
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D.
Cross-pollination
Solution
Asexual propagation is commonly used in horticulture for its efficiency and ability to produce clones of desirable plants.
Correct Answer: B — Asexual propagation
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