Embryo sac is developed from a megasporocyte/ ____ cell in ovule/ ____. Megasporocyte / megaspore mother cell is a ____ cell. Megasporocyte / megaspore mother cell undergoes ____ to produce ____ haploid megaspores. One of the megaspores becomes functional / ____. Three other megaspores ____ / disintegrate. The functional / surviving megaspore undergoes ____ division / three times mitosis. To form ____. The mitosis is without ____ // endomitosis. To produce ____ / female gametophyte. Three nuclei at one end/ chalaza of the embryo sac, to become ____ cells. Another three nuclei at the micropyle/ the other end of embryo sac become one ____ and two ____ cells. The two nuclei at the centre/ middle become ____.

Describe embryo sac development in flowering plants

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