Question

A unique phenomenon observed in the embryo sac of angiosperms is:

• A. Fusion of gametes
• B. Double fusion
• C. Triple fusion
• D. Triple fusion and double fertilization

Answer 1

The correct option is D Triple fusion and double fertilization

A unique phenomenon observed in the embryo sac of angiosperms is triple fusion and double fertilization. Double fertilization results in the formation of diploid zygte and triploid endosperm.
Diploid secondary polar nuclei fuses with the male gamete resulting in the formation of triploid endosperm.
Thus, the name double fertilization and triple fusion are justified.