How many microspore mother cells will give rise to $256$ microspores after reduction division
$512$
$128$
$64$
$96$
Identify $A$ to $E$ in the following diagram
Assertion : Pollen mother cells $(PMCs)$ are the first male gametophytic cells.
Reason : Each $PMC$ gives rise to two pollens.
The two-celled stage of mature pollen grain consists of
$A$ : The generative cell comes to lie freely in the cytoplasm of the tube cell.
$R$ : Cellulosic wall around generative cell is dissolved.