The pollen tube grows through the _______(i) by dissolving the tissues and reaches the ________(ii). There it pushes through the __________(iii) and reaches the __________(iv). The _________(v) nucleus now integrates and the pollen tube now enters one of the synergids.
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Pollen grains are produced by meiosis of microspore mother cells that are ... The tube cell (also referred to as the tube nucleus) develops into the pollen ... The gynoecium consists of the stigma, style, and ovary containing one or ... Once the tip of the tube reaches the micropyle end of the embryo sac, the tube grows through ...
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stigma ,,pollen grains
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