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प्रश्न
Name and differentiate between the two modes of pollination in flowering plants.
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उत्तर
Two types of pollination can be found in flowering plants:-
- Self-pollination
- Cross-pollination
Differences between the two are given below:-
| Self-Pollination | Cross-Pollination |
| The pollen needs to be transferred from the stamen to the stigma. If this transfer of pollen occurs in the same flower, it is referred to as self-pollination. | The pollen is transferred from one flower to another, it is known as cross-pollination. |
| It occurs in bisexual flowers. | It occurs in both bisexual and unisexual flowers. |
| It refers to the transfer of pollen grains from anther to stigma of the same flower or to another flower of the same plant. | It refers to the transfer of pollen grains from anther to stigma of flowers belonging to two different plants. |
| It is not necessary to use pollinators. | This transfer of pollen from one flower to another is achieved by agents like wind, water or animals. |
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संबंधित प्रश्न
Name the swollen lower part of the carpel.
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
What type of plants reproduce by sexual reproduction method?
The part of a seed which grows and develops into root on germination is :
(a) cotyledon
(b) plumule
(c) follicle
(d) radicle
In what ways is fertilisation in a plant similar to fertilisation in a human?
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
Pollen grains are formed by _________ division in locules of anthers.
The male reproductive part of a flower is ______.
Where does the endothecium layer of anther lobes is present?
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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