The endosperm in angiosperms develops from
Micropylar polar nucleus
Chalazal polar nucleus
Secondary nucleus
Zygote
Enlist the steps of controlled cross pollination. Would emasculation be needed in a cucurbit plant ? Give reasons for your answer.
Why does the zygote begin to divide only after the division of Primary Endosperm Cell $(PEC)$ ?
Endosperm of gymnosperm is
In angiosperms endosperm is formed by