Question

Describe the processes of triple fusion in angiospermic plants.

Hint:

Remember: Triple fusion in angiosperms results in 3n endosperm, which provides nutrition to the developing embryo. % Topic Reproduction in Flowering Plants

Answer 1

Triple fusion is a key process in the fertilization of angiosperms, where one sperm nucleus fuses with two polar nuclei to form a triploid (3n) endosperm. Steps of triple fusion: \begin{enumerate} \item Pollen tube releases two male gametes into the embryo sac. \item One sperm fertilizes the egg, forming the diploid zygote. \item The other sperm fuses with two polar nuclei, forming the triploid primary endosperm nucleus (PEN). \item The endosperm nourishes the developing embryo. \end{enumerate}