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The generative cell of a 2-celled pollen divides in the pollen tube but not in a 3-celled pollen. Give reasons.
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In a 3-celled pollen, the generative cell has already divided and formed 2 male gametes. Hence, it will not divide again in the pollen tube. Since in a 2-celled pollen, the generative cell has not divided, it divides in the pollen tube.
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