Question

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Answer 1

Answer:

Double fertilization is a complex fertilization mechanism of flowering plants. This process involves the joining of a female gametophyte with two male gametes. It begins when a pollen grain adheres to the stigma of the carpel, the female reproductive structure of a flower.

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Answer 2

It occurs when one male nucleus fertilizes (fuses) with egg cell to form zygote cell and other male nucleus fuses (fertilizes) with two polar nuclei to cause triple fusion. ...This is called DOUBLE FERTILIZATION

It occurs when one male nucleus fertilizes (fuses) with egg cell to form zygote cell and other male nucleus fuses (fertilizes) with two polar nuclei to cause triple fusion. ...This is called DOUBLE FERTILIZATION After fertilization: (i) Ovary develops into fruit. (ii) Ovules develop into seeds

Significance of double fertilization is as follows: ... .

~Double fertilization gives rise to an endosperm that provides nourishment to the developing embryo.

~It increases the viability of the seeds of angiosperms. It utilizes both the male gametes produced by the pollen grains.

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