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प्रश्न
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.
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उत्तर
A plant flowering in Mumbai cannot be naturally pollinated by pollen from the same species in New Delhi because pollen grains cannot travel such long distances to reach distant flowers.
However, if pollen grains are carried artificially, then pollination is possible.
Furthermore, pollen-pistil interaction involves pollen recognition, so even if pollen reaches the flower artificially, compatibility must be there for successful pollination.
संबंधित प्रश्न
List the different types of pollination depending upon the source of pollen gain.
Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.
The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as ______.
Fill in the blank:
Male sex cells in plants are called _________.
Differentiate between the following:
Self pollination and cross pollination.
Complete the following chart and rewrite.
| Sr.No. | Agencies | type of pollination |
| 1 | Water | .................... |
| 2 | ........................... | Entomophily |
| 3 | Bat | .................... |
| 4 | ....................... | Ornithophily |
(Or)
Explain outbreeding devices in angiospermic plants.
Fill in the blanks with suitable words.
Different timings for the maturation of gynoecium and androecium is called ________.
Type of interaction where an individual sacrifices its own welfare (life) for the benefit of another animal of its own species is ______.
Differentiate between geitonogamy and xenogamy (allogamy).
What is a flower? Draw a typical flower and label its different parts.
Write different modes of pollination in detail with suitable examples.
Very short answer type question:
What is hydrophily?
Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
A dioecious flowering plant prevents both ______.
Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in ______.
Which type of pollination does the figure indicate?
Autogamy can occur in a chasmogamous flower if ______.
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Match the Column I with Column II.
| Column I | Column II |
| A. Pea | (i) Xenogamy |
| B. Jawar | (ii) Epihydrophily |
| C. Maize | (iii) Anemophily |
| D. Vallis | (iv) Bisexual |
| E. Cannabis | (v) Geitonogamy |
