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How does the megaspore mother cell devel...

How does the megaspore mother cell develop into 7-celled, 8 nucleate embryo sac in an angiosperm? Draw a labelled diagram of a mature embryo sac.

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### Step-by-Step Solution 1. **Understanding the Megaspore Mother Cell (MMC)**: - The megaspore mother cell (MMC) is a diploid cell located in the ovule of angiosperms. It undergoes meiosis to produce four haploid megaspores, but typically, only one of these megaspores survives. 2. **Formation of the Two-Nucleate Embryo Sac**: - The surviving megaspore undergoes mitotic division. The first mitotic division results in a two-nucleate embryo sac, with one nucleus moving towards the chalazal end and the other towards the micropylar end. ...
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