Double fertilization is fusion of
One male gametes with egg and other with secondary nucleus
One male gamate with egg and other with synergid
Two eggs and antipodal cells with pollen nuclei
Two eggs
It degenerate after fertilization in angiosporm
$A$ : More than one pollen tubes can enter an embryo sac.
$R$ : Double fertilization can occur by contribution of gametes from different pollen
Definitions / Explanation : Double Fertilisation
Genotype of endosperm is $ZZA,$ find out the genotype of male and female plant respectively
For a gene if $A A= male plant, B B= female plant.$ Find out the genotype of endosperm and embryo