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What is meant by double fertilization??? |
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Answer» it is complex fertilisation mechanism of flowering plants Double fertilization1. Syngamy --in this one male gamete fuses with female gamate to form diploid zygote and than this zygote get converted in embryo which further grows into seed.2.Triple fusion--in this one male gamete fuses with two polar nuclei to form triploid endosperm which provides nourishment to the growing seed Hope this definition help u jahanvi...?? 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. As these two types of fertilizations take place at the same time in the ovule of the plant, it is known as double fertilization. Flowering plants perform double fertilization. It is the fusion of two male gamets brought up by a pollen tube with two different structure of the same embryo sac, one forming embryo and other endosperm. |
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