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प्रश्न
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
विकल्प
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
APPEARS IN
संबंधित प्रश्न
Explain the post-pollination events leading to seed production in angiosperms.
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What is self-incompatibility?
Enlist advantages and disadvantages of cross pollination
Draw a diagram of a section of a megasporangium of an angiosperm and label funiculus, Micropyle, embryosac and nuclleus.
Describe the advantages and disadvantages of cross-pollination to the plant.
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Answer the following question.
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Vegetative propagation is not observed in:
Very short answer type question:
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Pollination by water occurs in ______.
Pollination occurs in ______.
Even in absence of pollinating agents seed-setting is assured in ______.
The flower which possesses both androecium and gynoecium is called perfect or ______.
The flower which does not open at all are called ______.
Which one of these statements is incorrect?
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In the dioecious aquatic plant shown, identify the characteristics of the male flowers that reach the female flowers for pollination:
| Size of the flower | Colour of flower | The characteristic feature of pollen grain | |
| A | small | brightly coloured | Lightweight and non-sticky |
| B | large | colourless | large and sticky |
| C | small | white | small, covered with mucilage |
| D | large | colourless | non-sticky |
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What are the major abiotic factors that influence habitat?
