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प्रश्न
State four features of flowers pollinated by insects.
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उत्तर
- Flowers are large and brightly coloured.
- Pollen grains covered with pollen kit, rough and sticky.
- Sepals and petals are well developed.
- A nectar gland is present.
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संबंधित प्रश्न
A flower of tomato plant following the process of sexual reproduction produces 200 viable seeds.
Answer the following questions giving reasons :
(a) What would have been the minimum number of ovules present in pre-pollinated pistil ?
(b) How many microscope mother cells would minimally be required to produce requisite number of pollen grains ?
(c) How many pollen grains must have minimally pollinated the carple ?
(d) How many male gametes would have used to produce these 200 viable seeds ?
(e) How many megaspore mother cells were required in this process ?
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.
Describe pollination. How many types of pollinations are found?
A dioecious flowering plant prevents both ______.
Heterostyly as a contrivance for cross-pollination is found in ______.
Pollination refers to the ______.
What is ornithophily?
Pollination in water lilies is carried out by ______.
Mention any one example of the anemophilous flower.
What is epihydrophily?
