Question

Define:Double fertilization and triple fusion in context to sexual reproduction in flowers.

Answer 1

One male gamete from pollen grain reach to the ovule and fuses with egg cell to form zygote which is known as gametic fusion and the other male gamete fuses with the secondary nucleus of central cell to form PEN ( primary endosperm nucleus) which is triploid (3n) , this is known as triple fusion.

Since, the fusion of gametes is done two times, so this process is known as double fertilisation.

Hope this will help you!!!

Answer 2

Explanation:

$<p style ="Color:red; font-family: cursive; background:black;font size25px;"> Triple fusion is a fusion that involves a sperm nucleus and two polar nuclei which occurs in the double fertilization in a seed-bearing plant that results in the endosperm formation. ... One of the two male gametes fuses with the nucleus of the egg cell to produce the zygote, this process is referred to as syngamy.$