the generative cell divides into two male gametes in 2 celled pollen generative and vegetative cells are present but In a 3 celled pollen, the generative cell has already divided into two male gametes, so no further division occurs in the pollen tube
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the generative cell divides into two male gametes in 2 celled pollen generative and vegetative cells are present but In a 3 celled pollen, the generative cell has already divided into two male gametes, so no further division occurs in the pollen tube