Q.
The ovule of an angiosperm is technically equivalent to :
1799
200
Sexual Reproduction in Flowering Plants
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Solution:
The archesporial cells (2n) of young ovule cut off the parietal cell and are differentiated into megaspore mother cells (2n). The diploid megaspore mother cells then undergo meiosis to form a linear tetrad of megaspores. Megaspore is the first cell of the female gametophyte. Out of four, the functional megaspore undergoes megagametogenesis to 8-nucleate and 7-celled embryo sac. Ovule serves as megasporangium wherein megaspores production occurs.