Double fertilization involves

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(D) Double fertilization is a characteristic feature of angiosperms. It involves two fusion events: $1$. Syngamy: One male gamete fuses with the egg c

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Fertilization of the egg and the central cell by two sperms brought by the same pollen tube

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(D) Double fertilization is a characteristic feature of angiosperms. It involves two fusion events: $1$. Syngamy: One male gamete fuses with the egg cell to form a diploid zygote $(2n)$. $2$. Triple fusion: The second male gamete fuses with the two polar nuclei (or the secondary nucleus) in the central cell to form a triploid primary endosperm nucleus ($PEN$,$3n$). Both male gametes are delivered to the embryo sac by the same pollen tube.

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