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I In gymnosperms, the pollination is:-
- a)Anemophilous-micropylar
- b)Anemophilous-stigmatic
- c)Entomophilous-micropylar
- d)Entomophilous-stigmatic
Correct answer is option 'A'. Can you explain this answer?
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I In gymnosperms, the pollination is:-a)Anemophilous-micropylarb)Anemo...
Anemophily or wind pollination is a form of pollination whereby pollen is distributed by wind. Almost all gymnosperms are anemophilous, as are many plants in the order Poales, including grasses, sedges and rushes.
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I In gymnosperms, the pollination is:-a)Anemophilous-micropylarb)Anemo...
In gymnosperms pollination only occurs by wind i.e pollination is anemophilous. During pollination, pollen grains are blown by the wind to land on the female cones. Also during pollination, the pollen grains are transferred directly to the ovule as the ovules are exposed directly on the surface. Hence, pollination is not stigmatic but micropylar (micropyle being a small opening in the surface of the ovule).
So, the correct answer is 'Anemophilous- micropylar'.
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I In gymnosperms, the pollination is:-a)Anemophilous-micropylarb)Anemo...
Explanation:
Gymnosperms:
Gymnosperms are seed-producing plants with exposed seeds, not enclosed within an ovary or fruit. They are typically woody plants and include conifers, cycads, Ginkgo, and gnetophytes.
Pollination in Gymnosperms:
Pollination in gymnosperms is primarily anemophilous, which means it is carried out by the wind. The pollen grains are light and produced in large quantities to increase the chances of successful pollination.
Micropylar Pollination:
In micropylar pollination, the pollen lands on the micropyle, which is the opening in the ovule through which the pollen tube enters during fertilization. This type of pollination is common in gymnosperms where the pollen reaches the ovule through the micropyle.
Therefore, the correct answer is option a) Anemophilous-micropylar, indicating that in gymnosperms, pollination is carried out by wind (anemophilous) and the pollen lands on the micropyle of the ovule for fertilization.
Gymnosperms:
Gymnosperms are seed-producing plants with exposed seeds, not enclosed within an ovary or fruit. They are typically woody plants and include conifers, cycads, Ginkgo, and gnetophytes.
Pollination in Gymnosperms:
Pollination in gymnosperms is primarily anemophilous, which means it is carried out by the wind. The pollen grains are light and produced in large quantities to increase the chances of successful pollination.
Micropylar Pollination:
In micropylar pollination, the pollen lands on the micropyle, which is the opening in the ovule through which the pollen tube enters during fertilization. This type of pollination is common in gymnosperms where the pollen reaches the ovule through the micropyle.
Therefore, the correct answer is option a) Anemophilous-micropylar, indicating that in gymnosperms, pollination is carried out by wind (anemophilous) and the pollen lands on the micropyle of the ovule for fertilization.
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I In gymnosperms, the pollination is:-a)Anemophilous-micropylarb)Anemophilous-stigmaticc)Entomophilous-micropylard)Entomophilous-stigmaticCorrect answer is option 'A'. Can you explain this answer?
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