Endosperm is the result of

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(D) Endosperm is formed as a result of double fertilisation,specifically through the process of triple fusion where one male gamete fuses with two pol

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Triple fertilisation

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(D) Endosperm is formed as a result of double fertilisation,specifically through the process of triple fusion where one male gamete fuses with two polar nuclei to form the Primary Endosperm Nucleus $(PEN)$.Endosperm provides nourishment to the developing embryo during seed development.In plants such as bean,gram,and pea,the endosperm is not present in the mature seed because it is completely consumed during seed development. Such seeds are called non-endospermic or exalbuminous seeds.In monocots and castor bean (a dicot),the embryo does not consume all the endosperm during seed development,so it persists in the mature seeds. Such seeds are called endospermic or albuminous seeds.

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