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प्रश्न
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
पर्याय
Monoecious plant bearing unisexual flowers
Dioecious plant bearing only male or female flowers
Monoecious plant with bisexual flowers
Dioecious plant with bisexual flowers
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उत्तर
Dioecious plant bearing only male or female flowers
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संबंधित प्रश्न
Why do moss plants produce very large number of male gametes? Provide one reason. What are these gametes called?
Name the part of the flower which the tassels of the corn- cob represent.
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Answer the following question.
Write the difference in the characteristics of the progeny produced as a result of the two processes.
Mention various adaptations for wind pollination.
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Plants with ovaries having only one or a few ovules are generally pollinated by ______.
Which of the following plant contain unisexual flower?
Pollination refers to the ______.
Autogamy can occur in a chasmogamous flower if ______.
Describe any three adaptations in anemophilous flowers.
Consider the following statements depicting adaptation of flowers to carryout successful pollination.
- Stigma is long, sticky and unwettable.
- Sepals, petals or perianth (if present) have waxy coating.
- Stamens with long filament and versatile anthers.
- Tubular corolla is seen.
- Flowers are noctumal.
Which of the above statements clearly depict hydrophily?
Mention any one example of the anemophilous flower.
Give any four floral adaptations for chiropterophily.
Name the following:
Aquatic plants which are anemophilous.
Identify the set of correct statements:
- The flowers of Vallisneria are colourful and produce nectar.
- The flowers of waterlily are not pollinated by water.
- In most of water-pollinated species, the pollen grains are protected from wetting.
- Pollen grains of some hydrophytes are long and ribbon like.
- In some hydrophytes, the pollen grains are carried passively inside water.
Choose the correct answer from the options given below:
Which one of the following flower is hypohydrophilous?
