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प्रश्न
List any two strategy adopted by bisexual flowers to prevent self-pollination.
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उत्तर
- Protandry or protogyny
- Herkogamy
संबंधित प्रश्न
Sketch and label the V. S. of a mature anatropous ovule.
First cell of male gametophyte in angiosperm is
Arrange the layers of another wall from locus to periphery
Differentiate Secretary and invasive tapetum.
Distinguish tenuinucellate and crassinucellate ovules.
Give short notes on types of ovules.
Explain the pollination mechanism in Salvia.
Discuss the steps involved in Microsporogenesis.
______ refers to the flower in which gynoecium possesses many free carpels.
In a mature ovule, shows the presence of an oval shaped, haploid structure at micropylar end known as ______.
Identify the CORRECT term for the following:
The thick, highly resistant outer layer of pollen wall.
Ovule is attached to the ______ by a small stalk called funiculus.
Match the Column I (Type of pollination) and Column II (Characteristics). Select the correct option.
| Column I | Column II | ||
| a. | Ornithophily | 1. | Nocturnal flower |
| b. | Entomoohily | 2. | Light pollens |
| c. | Chiropterophily | 3. | Funnel-shaped corolla |
| d. | Anemophily | 4. | Pleasant fragrance and nectar |
Identify the botanical name of garden pea.
Name the part of pistil that develops into fruits and seeds after fertilization.
