Question

Explain tthe development of endosperm in angiosperm

Answer 1

We need to understand what gives rise to the endosperm.

A phenomenon called as ‘double fertilization’ takes place. Each pollen grain consists of two male gametes. Once they reach the ovary, one of the male gametes fuses with the female gamete and forms the zygote.

The other male gamete fuses with the central cell which is diploid resulting in the formation of a triploid endosperm. Thus, the endosperm can be polyploid as well in certain cases. But, in gymnosperms, the endosperm is haploid.