The pollen tube usually enters the embryo sac
Between one synergid and central cell
By directly penetrating the egg
Through one of the synergids
By knocking off the antipodal cells
After fertilization the outer integument forms
$A$ : Triple fusion is associated with the sexual reproduction in all spermatophytes.
$R$ : It is required to form definitive nucleus as nutritive tissue.
For a gene if $A A= male plant, B B= female plant.$ Find out the genotype of endosperm and embryo
Assertion : Double fertilization is characteristic feature of angiospersms.
Reason : Double fertilization involves two fusions