what is pollination show self and cross pollination through are labelled diagram
Answers
Pollination is defined as the placement or transfer of pollen from the anther to the stigma of the same flower or another flower. Upon transfer, the pollen germinates to form the pollen tube and the sperm for fertilizing the egg.
Pollination has been well studied since the time of Gregor Mendel. Mendel successfully carried out self- as well as cross-pollination in garden peas while studying how characteristics were passed on from one generation to the next.
Answer:
Pollination:
Pollination is a method where pollen grains are picked from an anther, which is the male part of a flower and transferred to the flower’s female part called the stigma. To make the pollination work successfully, the pollen grains must be transferred from the same species of flower.
Types of Pollination
All plants having flower completely rely on pollination method for reproduction. There are 2 types of pollination –
- Self Pollination
- Cross-Pollination
Self Pollination :
Self Pollination is referred to as the primary type of pollination as it includes a single flower. Self-pollination occurs when pollen grains fall directly from anther into the stigma of the flower. Although this process is quite simple and fast, which leads to a reduction in genetic diversity as the sperm and egg cells of the flower share some genetic information.
Cross-Pollination :
It refers to a complex type of pollination that allows the transfer of pollen grains from the anther of the flower into the stigma of another flower. This method leads to an increase in genetic diversity as different flowers will share and combine their genetic information to create unique offspring.
