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Note on double fertilization |
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Answer» Double fertilization is the joining of a female gametophyte with two male gametes. One sperm fertilizes the egg cell and the other sperm combines with the two polar nuclei of the large central cell of the embryo sac.This helps in providing enough nutrition to the embryo during seed germination. NEET QUESTION 2018What is double fertillization?Answer read as"Syngamy+Triple fusion".WhereSyngamy is fusion of egg cell and generative male nucleus,which results in formation of diploid zygote (2n).ANDTriple fusion is fusion of binucleate polar cell (2n) and male vegetative nucleus,which results in formation of triploid(3n) primary endosperm nucleous (PEN). |
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