Question

What happens to a pollen grain when it lands on a stigma? Show with the help of a diagram.​

Answer 1

Answer:

When pollen gran falls on stigma, it germinates on stigma and produce pollen tube which enters into the ovule release 2 male gametes and fuse with the ovule to form a seed.

Answer 2

Answer:

When a pollen grain lands on the stigma of a flower of the correct species , a pollen tube begins to grow. It grows through the style until it reaches an ovule inside the ovary. The nucleus of the pollen then passes along the pollen tube and fuses (joins) with the nucleus of the ovule.

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