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प्रश्न
Explain the terms 'self pollination'
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उत्तर
In self pollination, pollens from the anther are transferred to the stigma of the same flower or another flower of the same plant.
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संबंधित प्रश्न
The anther contains ______.
Where are the pollen grains produced?
What are the reproductive organs in a flower?
How do the insects help in cross-pollination?
Explain the term 'fertilisation'.
What is seed?
Name the part of a seed which contains stored food.
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
State whether the following statement is true (T) or false (F):
Stamens make egg cells.
Identify A, B, C and D in the given diagram and write their names.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
List any two differences between pollination and fertilization.
Sketch the labelled diagram.
Flower with its sexual reproductive organs.
Fill in the blanks and rewrite the completed statements:
Lymph flows in _______________ direction.
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Pollen grains are formed by _________ division in locules of anthers.
Conidia are formed endogenously while zoospores are formed endogenously.
Which among the following statements are true for unisexual flowers?
- They possess both stamen and pistil
- They possess either stamen or pistil
- They exhibit cross pollination
- Unisexual flowers possessing only stamens cannot produce fruits
Double fertilization means ______.
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
