Question

how is the egg fertilised in a flower ​

Answer 1

Answer:

In the form pollination.

  two types of pollination :

        * cross pollination

        * self pollination

Answer 2

When pollen grains are landed on the stigma of flower i.e, pollination is done then the tube cell of the pollen grain begins to develop a pollen tube which penetrates through the style of flower and reaches to the ovary.

Here, now the teri male germ cell, which was following the tube cell, one of them meets to the polar nuclei and one to the egg cell.

And that's how the egg cell is fertilised

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