The pollen grain represents
Male gamete
Male gametophyte
Microsporophyll
Microsporangium
Pollen grains are released from
Ubisch bodies are present in
The two-celled stage of mature pollen grain consists of
How many microspore mother cells will give rise to $256$ microspores after reduction division
$A$ : Formation of mature male gametophyte requires one meiotic and one mitotic division in $60\;\% $ of the
angiosperms.
$R$ : Pollination occurs in three celled condition in majority of angiosperms.