biology·NCERT Class 12·Sexual Reproduction in Flowering Plants
Flower & Double Fertilisation
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Plants do something animals never do: fertilise an egg AND make food simultaneously in the same event. One pollen tube delivers two sperm. Watch double fertilisation happen.
›Pollen tube grows through style → enters ovule via micropyle.
›Embryo sac (female gametophyte): 7 cells, 8 nuclei (3 antipodals, 2 polar, 1 egg, 2 synergids).