7. How does the process of fertilisation take place in flowers?
Divya Prakash Singh
Once the pollen grains spread on the stigma, it produces a pollen tube and this process is called the germination of pollen grains.
Then the pollen tube penetrates the style and reaches the ovary where the male nucleus is transferred through this pollen tube and finally, the fusion of male and female nuclei takes place inside the ovary. Thus, this step is called fertilization.