What is double fertilisation ? Explain in brief.

1.	What is double fertilisation ? Explain in brief.
Answer» Thanks yogita ingle \tThe process of fusion of one male gamete with the egg along with the union of the second male gamete with the two polar nuclei or the secondary nucleus is called double fertilisation.\tOut of the two male gametes, one fuses with the egg to carry out generative fertilisation or syngamy. It gives rise to a diploid zygote or oosphere.\tThe nucleus of the second male gamete fuses with two haploid polar nuclei or diploid secondary nucleus of the central cell to form a triploid primary endosperm nucleus (PEN). The central cell is called primary endosperm cell (PEC). This is called vegetative fertilisation or triple fusion And the other male nucleus fertilize with two polar nuclie is know as triple fussion ? When one male nucleus fertilizes with egg shell to form zygote and other male nucleus fertlizes with to polar nuclie this is called double fertilization or triple fusion When male reproductive organ (sperm)and female (ovm) obtain zygote this zygote divide into two part is called double fertilization

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