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Introduction to angiosperms - class-XI
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In angiosperms, the chalazal megaspore undergoes mitosis how many times?
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A
Thrice
💡 Explanation:
In angiosperms, the functional megaspore (usually the chalazal one) undergoes three successive rounds of free-nuclear mitotic divisions to form an 8-nucleate, 7-celled embryo sac. Therefore, it undergoes mitosis thrice.