Double fertilization is characteristic of

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(B) Double fertilization is a unique and defining characteristic of $Angiosperms$ (flowering plants).In this process, one male gamete fuses with the e

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Angiosperm

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(B) Double fertilization is a unique and defining characteristic of $Angiosperms$ (flowering plants).In this process, one male gamete fuses with the egg cell to form a diploid zygote $(syngamy)$, and the second male gamete fuses with the two polar nuclei to form a triploid primary endosperm nucleus $(triple 	ext{ } fusion)$.This combined process of syngamy and triple fusion is known as double fertilization.

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