In angiosperms, double fertilization occurs. The pollen grain contains two sperm cells. In the female part of the flower, one gamete forms into an egg and two gametes fuse together to form a megagametophyte.
Both the egg and the megagametophyte are fertilized by the pollen grain. The fertilized egg forms the embryo. The fertilized megagametophyte forms the endosperm . It is the fusion of 3 seperate gametes (triploid).
The endosperm (nutrient storage structure) becomes the cotyledon.
In angiosperms, double fertilization occurs. The pollen grain contains two sperm cells. In the female part of the flower, one gamete forms into an egg and two gametes fuse together to form a megagametophyte.
Both the egg and the megagametophyte are fertilized by the pollen grain. The fertilized egg forms the embryo. The fertilized megagametophyte forms the endosperm . It is the fusion of 3 seperate gametes (triploid).
The endosperm (nutrient storage structure) becomes the cotyledon.
Thank you. I used to know these things, but its been so long.