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प्रश्न
State significance of pollination.
What is the significance of pollination?
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उत्तर
Significance of pollination:
- Pollination is a significant event because it precedes fertilization.
- It brings the two types of gametes closer for the process of fertilization.
- Also, cross-pollination introduces variations in the plants due to the mixing of different genes which increases adaptability towards the environment or surroundings.
- Fertilization thereby results in the formation of fruits and seeds. Without pollination, there wouldn't be any fruit and seed formation.
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संबंधित प्रश्न
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
“Cell division is a type of reproduction in unicellular organism.” Justify.
Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:
(a) Female germ cell
(b) Male germ cell
(c) Ovary
In which part of the flower germination of pollen grains takes place?
Where is the zygote located in the flower after fertilization?
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
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