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प्रश्न
Describe the characteristic features of wind pollinated flowers.
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उत्तर
(b) Characteristics of wind pollinated flowers
i. It shows compact inflorescence
ii. It has well exposed stamens.
iii. The plants produce large quantity of pollens
iv. The pollens are dry and unwettable
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संबंधित प्रश्न
A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds.
Answer the following questions giving reasons :
(a) What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?
(b) What would have been the minimum number of ovules present in the ovary?
(c) How many megaspore mother cells were involved?
(d) What is the minimum number of microspore mother cells involved in the above case?
(e) How many male gametes were involved in this case?
What is self-incompatibility?
Name two characteristics of flowers in which pollination occur by wind.
Describe the advantages and disadvantages of cross-pollination to the plant.
Answer the following question.
Write the difference in the characteristics of the progeny produced as a result of the two processes.
Coelacanth was caught in South Africa. State the significance of the discovery of Coelacanth in the evolutionary history of vertebrates.
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Pollination by water occurs in ______.
Advantage of cleistogamy is:
What is epihydrophily?
