Question

What happens when a pollen grain falls on the stigma?

Answer 1

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Pollen is transferred from one flower to another. When pollen grains land on the stigma of a flower of the correct species they germinate. A pollen tube grows through the tissues of the flower until it reaches an ovule inside the ovary. ... After fertilisation the female parts of the flower develop into a fruit.

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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.