Question

Triple fusion in angiosperm is the fusion of second sperm with

• A. antipodal cell and one synergid cell
• B. two antipodal cells
• C. two synergid cells
• D. two polar nuclei

Answer 1

The correct option is D two polar nuclei

Fertilisation in angiosperms involves two important events - syngamy and triple fusion. In syngamy, one of the sperm released by the pollen tube in the embryo sac fuses with the egg cell and forms a diploid zygote which further develops into embryo. Triple fusion is a characteristic feature in angiosperms where the sperm nucleus fuses with the secondary polar nuclei in the embryo sac.