generative nucleus

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angiosperm life cycle

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generative nucleus

plant anatomy

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angiosperms

In plant reproductive system: Angiosperms
…involves formation of a small generative cell and a tube cell. The generative cell may divide to form two sperm cells before the pollen grain (developing male gametophyte) is shed or while the pollen tube is growing during germination. The pollen grains of angiosperms have variously, and often elaborately, ornamented…
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seed development

In seed: Angiosperm seeds
The other two, the generative nuclei, can be thought of as nonmotile sperm cells. After reaching an ovule and breaking out of the pollen tube tip, one generative nucleus unites with the egg cell to form a diploid zygote (i.e., a fertilized egg with two complete sets of chromosomes,…
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