Course Content
GROWTH AND DEVELOPMENT IN PLANTS AND ANIMALS
Biology Form 3
About Lesson

Pollen Grains

Produced by the anthers.

Contain the male gametes.

When the pollen grain lands on the stigma, it starts germinating to form a pollen tube that grows down the style.

The generative nucleus later mitotically divide into two male nuclei.

Functions of the pollen tube

  • Transport the male gametes to the embryo sac;
  • Nourish the male gametes;
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