Question

What is the ploidy of endosperm in angiosperms?

Answer 1

Angiospermic endosperms are triploid in nature. In angiosperms, double fertilization occurs and as a result of that triple fusion takes place. The female gametophyte or embryo sac has an egg nucleus and two polar nuclei. One sperm fertilizes the egg nucleus and forms the diploid zygote. Another sperm joins the two polar nuclei forming the triploid (3n) nutritive tissue, called as the endosperm.