Question
Thu January 19, 2012 By: Yashasvi Narula
 

What is the difference between double fertilization and triple fusion?

Expert Reply
Fri January 20, 2012
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.

Ask the Expert