What is the difference between double fertilization and triple fusion?

Asked by YASHASVI NARULA | 19th Jan, 2012, 09:27: PM

Expert Answer:

In angiosperms, double fertilisation refers to the fusion of one sperm cell with an egg (syngamy), and another sperm cell with the polar nuclei to yield a triploid endosperm (triple fusion).
 Double fertilisation involves two processes, triple fusion and syngamy.

Triple fusion --> Here, the haploid male gamete fuses with the secondary nucleus (diploid) to form the triploid endosperm nucleus, which later forms the endosperm.

Syngamy --> Here a male gamete fuses with a female gamete(egg) in order to give rise to zygote.

So triple fusion is a part of double fertilization.

Answered by  | 20th Jan, 2012, 08:19: AM

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