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Describe the structure of a typical embr...

Describe the structure of a typical embryo sac found in flowering plants . Why is it generally referred to as monosporic ?

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The process of development of a gametophyte or embryo sac from a megaspore is called megagametogenesis. The nucleus of megaspore undergoes three successive mitotic divisions forming high haploid nuclei. The megaspore enlarges into an oval shaped structure called embryosac . The polar nuclei may fuse to form a secondary nucleus . It is a monosporic type of development and embryo sac is termed monosporic .
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