Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 11-20 of 50 questions.
What is the correct meaning of pollination?
A. परागकणों का वर्तिकाग्र पर पहुंचनाTransfer of pollen grains to stigma
Identify the concept: pollination is an early step in reproduction.
It means pollen grains reach the stigma from anther.
Exam note: Pollination is transfer, fertilization is fusion.
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Pollination within the same flower is called what?
B. स्वपरागणAutogamy
Identify the concept: self-pollination uses pollen from the same plant.
When pollen reaches the stigma of the same flower, it is autogamy.
Memory tip: Auto means self.
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Pollination between two different flowers of the same plant is called what?
B. जाइटोनोगैमीGeitonogamy
Identify the concept: pollination can occur between different flowers on the same plant.
This is called geitonogamy.
Exam note: Geitonogamy is genetically similar to self-pollination.
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Pollination between flowers of two different plants is called what?
C. जीनोगैमीXenogamy
Identify the concept: pollination between different plants brings genetic variation.
This is called xenogamy.
Memory tip: Xeno means different.
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Pollination by wind is called what?
B. एनिमोफिलीAnemophily
Identify the concept: pollination has different agents.
Wind pollination is called anemophily.
Exam note: Anemo means wind.
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Pollination by water is called what?
C. हाइड्रोफिलीHydrophily
Identify the concept: in some plants water acts as a pollinating agent.
Pollination by water is hydrophily.
Memory tip: Hydro means water.
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Pollination by insects is called what?
A. एंटोमोफिलीEntomophily
Identify the concept: insects pollinate many flowers.
Pollination by insects is called entomophily.
Exam note: Entomo means insects.
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What is a common feature of wind-pollinated flowers?
B. हल्के और अधिक संख्या में परागकणLight pollen grains produced in large number
Identify the concept: wind-pollinated pollen must travel through air.
So pollen grains are light and produced in large numbers.
Exam note: Wind-pollinated flowers are usually not showy.
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Which feature is commonly found in insect-pollinated flowers?
A. रंगीन दल और सुगंधColourful petals and fragrance
Identify the concept: insects are attracted by flowers.
Colour, fragrance, and nectar attract insects.
Memory tip: Insect-pollinated flowers are attractive.
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What does a pollen grain form after germinating on the stigma?
B. परागनलीPollen tube
Identify the concept: after pollination the pollen grain germinates.
It forms a pollen tube on the stigma.
Exam note: Pollen tube carries male gametes to the embryo sac.
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