Define self pollination and cross pollination ?

Question

Answer

Cross-Pollination

The cross-pollination is defined as deposition of pollen grains from a flower to the stigma of another flower. Commonly, the process is done pollinators that are insects and wind. By insects, the process takes place in several plants like tulips, grapes, plums, apples, pears, strawberries, daffodils, raspberries and others. While, by wind for different grasses, maples trees, dandelions, catkins, and others.

Self Pollination

In this process, the pollen grains transfer from the stigma of the same or genetically similar
flower
. The self-pollination can be seen in legumes like sunflowers, orchids, peanuts, oats, peas, potatoes, wheat, peaches, and more.

Answer

Self Pollination :- Transfer of pollen grains from anther to stigma of same flower is called self pollination.
Cross Pollination :- Transfer of pollen grains from anther to stigma of another flower is called cross pollination.

Answer

The pollination of a flower by pollen grain from the same flower.
The pollination of a flower by pollen grain from another flower

Answer

Self Pollination and Cross Pollination
Self Pollination:
Self-pollination is the process in which a flower's pollen is transferred to the stigma of the same flower or another flower on the same plant. This can occur through various means such as wind, water, or by the help of pollinators like bees. Self-pollination leads to the fertilization of the egg cells within the same plant, resulting in genetic uniformity.

Cross Pollination:
Cross-pollination is the process in which pollen is transferred from the anther of one flower to the stigma of another flower on a different plant of the same species. This process is usually facilitated by wind, insects, birds, or other animals. Cross-pollination leads to genetic diversity as it combines the genetic material from two different plants.

Key Differences:
- Self-pollination occurs within the same plant, while cross-pollination occurs between different plants.
- Self-pollination leads to genetic uniformity, while cross-pollination results in genetic diversity.
- Self-pollination can be more reliable in ensuring pollination, while cross-pollination increases genetic variation and adaptability.
In conclusion, both self-pollination and cross-pollination play crucial roles in plant reproduction and evolution. While self-pollination ensures reproductive success and genetic uniformity, cross-pollination promotes genetic diversity and adaptability in plants.

Similar Class 7 Doubts

Explain the different between self-pollinatio and cross - pollination

difference between cross pollination and self pollination

Please tell in one word that tomato and Lady finger are the example of cross pollination or self pollination?

In which type of pollination, the pollen is transferred from the anther of a flower to the stigma of another flower of the same species?

What is self pollination?

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