First slide
Pre-fertilisation : Structures and Events
Question

Which is the nutritive tissue of ovule or integumented megasporangium?

Easy
Solution

The diploid nucellus is a mass of tissue protected by integuments of ovule and has nutritive function. It provides nourishment to megaspore mother cell, functional megaspore and embryo sac. Sometimes, it also nourishes the developing embryo and germinating seeds as in perispermic seeds. 

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