1.

Name a distinguishing structure seen in a mature black pepper seed and not in a pea seed. State how does it develop. 

Answer»

Ruminant of nucellus which persist in some seed is called perisperm. It is a nutritive tissue surrounding the embryo, e.g. black pepper. It originates from the nucellus, which is the central part of the ovule in the embryo sac. 



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