Identify $A$ and $B$ in diagram given below:
$A-Stamen; B-Pistil$
$A-Filament; B-Anther$
$A-Anther; B-Filament$
$A-Pistil, B-Stamen$
The odd one is
Meiotic cell division takes place during
If the cells of root in wheat plant have $42$ chromosomes, then the no. of chromosome in the cell of pollen grain is
How many meiotic divisions are necessary to produce $100$ pollen grains