Question

What's mean by double fertilisation?

Answer 1

During the reproduction process in a flower, there take place two fertilizations among which one is fertilization of germ-cell with the ovary and the other is with ovule, thus forming fruit and seed respectively is called double fertilization.

Answer 2

the fertilization process characteristic offlowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while asecond fuses with two polar nuclei toproduce a triploid body that gives rise tothe endosperm.