once the pollen reaches the stigma pollen reaches the stigma pollen tube traverses down the
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once the pollen reaches the stigma it show chemotropic movement and reaches inside the ovary to carry out fertilisation
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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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