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Each pollen grain contains 2 sperm nuclei, one if a tube nucleus and the other a generative nucleus.

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January 8th, 2018

Each pollen grain contains 2 sperm nuclei, one if a tube nucleus and the other a generative nucleus. After pollination, the pollen grain that fall on the ovary begins to form a new _______, probably under the control the ______ nucleus. The pollen tube gorws through the style into the ovary. The sperm nucleus moves down the pollen tube where it divides into 2 sperm nuclei. Indside the embryo sac, one sperm nucleus joing the egg nucleus, producing a fertilized egg. This is the process of fertilization. The second _____ nucleus joins with the _____ nuclei to form an ____, whcih develops in the seeds.Is tube nucleus a sperm nucleus?

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