NEET 2000 Biology question

Endosperm is formed during the double fertilization by :

(1)Two polar nuclei & one male gameteCorrect
(2)One polar nuclei & one male gamete
(3)Ovum and male gamete
(4)Two polar nuclei & two male gametes

Answer: (1)

Solution

In double fertilisation one male gamete fuses with the egg to form the diploid zygote (syngamy), and the second male gamete fuses with the two polar nuclei (or the secondary nucleus) of the central cell - triple fusion -

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Question ID VK-088654