Embryo develops first after double fertilisation, followed by the endosperm development.
The mature seeds of plants such as gram and peas possess no endosperm,because
(a) these plants are not angiosperms
(b) there is no double fertilisation in them
(c) endosperm is not formed in them
(d) endosperm gets used by the developing embryo during seed development
Describe development of endosperm after double fertilization?