A) embryo
B) endosperm
C) suspensor
D) fruit wall
Correct Answer: B
Solution :
The pollen tube releases the two sperm into the embryo sac, where one fuses with the egg and form a zygote and the other fuses the two polar nuclei of the central cell and forms a triple fusion, or endosperm, nucleus. So, in angiosperms, triple fusion is required for endosperm.
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