Question

Define double fertilization and tripal fusion ....

fast please !!!

Answer 1

2 pollen grains reach the ovary of which one fuses wid the egg cell and the other fuses wid the two antipodan cells which helps in growth as 2 feritilizations occur at the same time its double fertilisation and three eggs get fused its a triple fusion 

Answer 2

$\huge\textbf{Answer}$


When a pollen grain fuse with two polar nuclei. [Polar nuclei are present in the ovule of ovary.] Then $\textbf{Triple fusion}$ takes place.

And when pollen grain fuse with an egg then formation of Zygote takes place.

Since the fertilization occurs two times, this is known as $\textbf{Double Fertilization}$ in Plants.

Fertilization in Plants is known as the Syngamy.