An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is

What will be the amount of $DNA$ in a pollen grain if its mother cell has $32 \; pg$ $DNA$ in $G_2$ phase (in $; pg$)?

The pollen grain represents

$A$: Each cell of the sporogenous tissue is capable of giving rise to a microspore tetrad.
$R$: The most abundant type of microspore tetrad is the product of simultaneous cytokinesis.

The cells of the sporogenous tissue undergo meiotic division to form microspore tetrads. What would be the ploidy of the cells of the sporogenous tissue?

What is the ploidy of the cells of a microspore tetrad (in $n$)?