Question

Give any four points of significance of double fertilization.

Give the significance of double fertilization.

What is the significance of double fertilization in angiosperms?

Answer 1

1. It is a unique feature of angiosperms.
2. It ensures that the parent plant invests a seed with a food store only if the egg is fertilized.
3. The diploid zygote develops into an embryo, which consequently develops into a new plant.
4. The triploid PEN develops into nutritive endosperm tissue.
5. It restores the diploid condition by the fusion of the haploid male gamete with the haploid female gamete (i.e., through syngamy).
6. It also helps to avoid polyembryony.

Answer 2

1. A triploid endosperm is produced as a result of double fertilisation, and this endosperm gives the growing seeds essential nourishment.
2. It introduces about genetic changes inside the species.
3. The fusion of haploid male and female gametes results in the restoration of the diploid condition.