A typical angiosperm embryo Sac, at maturity ...... nucleate and ....... celled.
$7,8$
$7,7$
$8,8$
$8,7$
In which of the following, parthenocarpy makes no sense?
In angiosperm, all $4$ microspores of tetrad are covered by a layer which is formed by
Two plants can be conclusively said to belong to the same species if they
When the pollen grains are not transferred from anthers to the stigma in flower due to the barrier or fence, it is referred as or when some natural barrier exists between androecium and gynoecium to check self pollination, it is known as
An aggregate fruit is one which develops from