Pollination and Fertilization — Important Questions
ICSE · Class 9 · Biology
43 important questions from Pollination and Fertilization for ICSE Class 9 Biology, with answers. Part of the ICSE Class 9 Biology syllabus.
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Important Questions from Pollination and Fertilization
Which of the following are types of self-pollination?
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Autogamy, Geitonogamy
Self-pollination includes autogamy (pollen from same flower) and geitonogamy (pollen from different flower of same plant). Allogamy and cross-pollination involve different plants.
Cross-pollination produces healthier offspring than self-pollination.
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True
Cross-pollination brings genetic material from different plants, leading to genetic variation and healthier, more vigorous offspring compared to self-pollination which can lead to weaker generations.
Which characteristics favor insect-pollinated flowers?
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Bright colors, Sweet scent, Nectar production
Insect-pollinated flowers attract insects with bright colors, sweet scent, and nectar. Small dull flowers and feathery stigma are characteristics of wind-pollinated flowers.
Double fertilization occurs in flowering plants.
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True
Double fertilization is a unique feature of flowering plants where one sperm nucleus fuses with the egg cell and another sperm nucleus fuses with two polar nuclei.
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