Explain the different between self-pollinatio and cross - pollination

Question

Answer

See the main four differences b/w them :-___

SELF POLLINATION____//

1. it is the transfer of pollen grains from anther to the stigma of the same flower.
2. it doesnt required an external agency for the transfer of pollen grains.
3. such bisexual flowers produce small number of pollen grains.
4. the main nd important is that.... it doesnt bring variation !

CROSS POLLINATION____//

1. it is the transfer of pollen grains from the anther of one flower to the stigma of another flower.
2. it requires an external agency for the transfer of pollen grains from one flower to another.
3. such flowers produce large number of pollen grains.
4. finally at last... it bring about large number of variations.

hope u got it man !

Answer

Cross pollination -   1) If the pollen of a flower lands on stigma of  different plant of same kind it is called cross pollination. 2) Cross pollination occurs in unisexual flowers. Self pollination- 1) if the pollen of a flower lands on stigma of plant of same kind it is called self pollination. 2) Self pollination occurs on bisexual flowers.

Answer

Difference between Self-pollination and Cross-pollination

Self-pollination and cross-pollination are two different methods of pollination that occur in plants. These methods involve the transfer of pollen grains from the male reproductive organ (anther) to the female reproductive organ (stigma) of a flower. However, there are significant differences between these two processes.

Self-pollination:
Self-pollination is the process in which the pollen grains from the anther of a flower are transferred to the stigma of the same flower or another flower on the same plant. In this process, the plant is able to reproduce without the need for external agents, such as wind or insects.

Advantages of Self-pollination:
- Assurance of reproduction: Self-pollination ensures that a plant can reproduce even if no other compatible plants are present nearby.
- Consistency in traits: Self-pollination maintains the consistency of traits within a plant species, as the offspring will inherit traits from the same plant.
- Increased reproductive success: Self-pollination increases the chances of successful fertilization, as the pollen grains are readily available within the same flower or plant.

Cross-pollination:
Cross-pollination is the process in which the pollen grains from the anther of one flower are transferred to the stigma of a different flower, typically from another plant of the same species. This process relies on external agents, such as wind, water, or pollinators like insects, birds, or animals, to carry the pollen grains between flowers.

Advantages of Cross-pollination:
- Genetic diversity: Cross-pollination promotes genetic diversity, as it involves the exchange of genetic material between different plants. This diversity can lead to the development of offspring with enhanced adaptability and survival traits.
- Increased chances of fertilization: Cross-pollination increases the chances of successful fertilization, as it allows for a larger pool of pollen grains from different plants to be available for pollination.
- Reduction of inbreeding depression: Cross-pollination helps in avoiding inbreeding depression, which is the negative impact on the fitness and survival of offspring when closely related plants reproduce.

Conclusion:
In summary, self-pollination is the transfer of pollen within the same flower or plant, while cross-pollination involves the transfer of pollen between different flowers or plants. Self-pollination ensures reproduction in the absence of external agents, while cross-pollination promotes genetic diversity and increases the chances of successful fertilization. Both methods play important roles in plant reproduction and contribute to the overall survival and adaptation of plant species.

Answer

Naice

Answer

Bhavana Khada karne lagta hai kabhi Tu

Answer

Self pollination is between only one unisexual flower Cross pollination can be between one anther of one flower and Stigma of another flower

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