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Sexual Reproduction in Flowering Plants
Megasporogenesis and female gametophyte development
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Concepts tested
- Megasporogenesis and female gametophyte development
All Questions
2023 Manipur 1 question
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In angiosperms the correct sequence of events in formation of female gametophyte in the ovule is: (A) 3 successive free nuclear divisions functional megaspore. (B) Degeneration of 3 megaspores. (C) Meiotic division in megaspore mother cell. (D) Migration of 3 nuclei towards each pole. (E) Formation of wall resulting in seven celled embryosac. Choose the correct answer from the options given below:The correct sequence is: Meiotic division in the megaspore mother cell producing four megaspores (C) → Degeneration of 3 of the 4 megaspores, leaving one functional megaspore (B) → 3 successive free nuclear divisions of the functional megaspore (A) → Migration of nuclei (3 towards each pole) (D) → Formation of cell walls resulting in the seven-celled, eight-nucleate embryo sac (E). Order: C, B, A, D, E.