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The formation of primary endosperm nucle...

The formation of primary endosperm nucleus is called as triple fusion . Why is it called so ?

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The primary endosperm nucleus is formed by the fusion of secondary nucleus and a male gamete and the secondary nucleous is formed by the fusion of two haploid polar nuclei . As three fusions are taking place in the formation of primary endosperm nucleus it is called triple fusion .
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NEW JOYTHI PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS -New Evaluation Type Questions
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  4. Fertilization in angiosperms is called as "double fertilization" becau...

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