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प्रश्न
First cell of male gametophyte in angiosperm is
विकल्प
Microspore
megaspore
Nucleus
Primary Endosperm Nucleus
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उत्तर
Microspore
संबंधित प्रश्न
Sketch and label the V. S. of a mature anatropous ovule.
Arrange the layers of another wall from locus to periphery
List any two strategy adopted by bisexual flowers to prevent self-pollination.
What is endothelium?
Explain the pollination mechanism in Salvia.
With a suitable diagram explain the structure of an ovule.
Identify the event in a botanical garden that is never directly influenced by light.
______ refers to the flower in which gynoecium possesses many free carpels.
Identify the function/s of integuments.
In a mature ovule, shows the presence of an oval shaped, haploid structure at micropylar end known as ______.
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.
During the formation of leaves and elongation of stem, some cells ‘left behind’ from the shoot apical meristem, constitute the:
